A replaceable screen type magnetic screen window

Abstract

This invention relates to a magnetically attached window screen with a reusable screen, comprising a bottom frame, a screen frame located at the upper end of the bottom frame, and a screen body installed inside the screen frame. The screen frame and the screen body are detachably connected by an elastic strip. The bottom frame is fixed to the window frame, and the screen frame is detachably attached to the bottom frame magnetically. The screen frame includes a frame body with an installation groove on its inner edge. The edge of the screen body is placed in the installation groove and embedded in the groove by the elastic strip. This invention uses an interference fit structure between the elastic strip and the strip groove to fix the screen. When the screen is damaged or aged, the user only needs to pry open the elastic strip to remove the old screen and install the new screen, without damaging the frame or cleaning residual adhesive. The replacement of the screen is simpler and less time-consuming, facilitating flexible replacement of screens of different materials, achieving non-destructive and rapid screen replacement, and improving practicality.

Description

Technical Field

[0001] This invention relates to the field of screen technology, specifically to a magnetically attached screen with a reusable screen mesh. Background Technology

[0002] With the improvement of modern home life quality and people’s emphasis on healthy living environment, mosquito screens have become an indispensable part of home door and window systems. Magnetic screens usually consist of a bottom frame fixed to the window frame and a movable frame with a screen. The two are magnetically attracted to achieve closure and separation, which not only ensures a good mosquito prevention effect, but also makes it easy for users to disassemble, clean or ventilate as needed. Existing magnetic window screens typically consist of a frame, a magnetic strip, and a screen fixed within the frame. The frame is usually made of aluminum alloy or plastic profiles, while the magnetic strip is attached to the screen and window frame with adhesive. This allows the screen to be installed and removed through magnetic attraction. However, this integrated structure makes it inconvenient to disassemble the screen and magnetic strip.

[0003] Existing magnetic screens use adhesive to fix the screen, which is difficult to disassemble without damage when the screen is damaged or aged. It often requires destructive removal of the magnetic strip, and cleaning up residual adhesive is cumbersome and can easily damage the frame. This makes it impossible to replace the screen quickly and repeatedly at low cost. At the same time, the connection stability is insufficient and there are safety hazards. The connection method that relies solely on magnetic adsorption has limited wind pressure resistance. In strong winds or accidental collisions, the screen frame is very likely to detach from the bottom frame and fall. Based on this, we propose a strip-type magnetic screen that allows for repeated screen replacement to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a strip-type magnetic screen window with reusable screen mesh. The screen mesh can be repeatedly replaced, enabling the installation and removal of screen meshes of different materials, thus improving convenience. This solves the problems of existing magnetic screen window fixing methods that use adhesive, which prevents the screen mesh from being replaced quickly and repeatedly at low cost, and also results in insufficient connection stability and potential safety hazards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a magnetically attached screen window with a reusable screen, comprising a bottom frame, a screen frame disposed on the upper end of the bottom frame, and a screen body installed inside the screen frame. The screen frame and the screen body are detachably connected by an elastic strip. The bottom frame is used to fix the screen to the window frame, and the screen frame is detachably attached to the bottom frame by magnetic attraction. The mesh frame includes a frame body, with an installation groove on the inner edge of the frame body. The edge of the mesh body is placed in the installation groove and is embedded in the installation groove by an elastic pressure strip. The elastic pressure strip fixes the mesh body to the frame body. An auxiliary locking component is provided between the bottom frame and the mesh frame. The auxiliary locking component is used to provide mechanical limiting and fixing on the basis of magnetic connection.

[0006] Furthermore, the bottom frame is assembled from four lower corner frames and four lower magnetic strips. The lower corner frames are L-shaped, and the four lower corner frames are joined end to end to form a rectangular frame structure. The two ends of the lower magnetic strips are respectively embedded and installed between two adjacent lower corner frames. The surface of the lower corner frames is provided with snap-fit ​​grooves, which are used to cooperate with the auxiliary locking components on the mesh frame.

[0007] Furthermore, the mesh frame includes four upper corner frames and four outer frames. The upper corner frames are L-shaped and correspond one-to-one with the lower corner frames. The outer frames are connected between two adjacent upper corner frames. The inner side of the outer frames is provided with upper magnetic strips. The upper magnetic strips and lower magnetic strips correspond one-to-one and attract each other to form the adsorption positioning of the mesh frame and the lower bottom frame.

[0008] Furthermore, the auxiliary locking assembly includes a pivot mounted on the upper corner bracket, a torsion handle mounted on the outer end of the pivot, and a locking block mounted on the lower end of the pivot and extending to the inner side of the upper corner bracket, the shape of which is adapted to the locking groove.

[0009] Furthermore, the snap-fit ​​groove has a Ф-shaped structure. When the mesh frame is attached to the bottom frame, the snap-fit ​​block is inserted into the entrance of the snap-fit ​​groove. Rotating the handle drives the rotating shaft and the snap-fit ​​block to rotate, so that the snap-fit ​​block rotates to the limit position inside the snap-fit ​​groove.

[0010] It is important to note the fit between the Ф-shaped locking groove and the locking block. The locking groove is an irregularly shaped groove structure with a narrow entrance and a wide interior. The main body of the locking groove is a round hole structure with directional notches at both ends of the side wall. The shape of the locking block corresponds to this. Therefore, the locking block can only enter the locking groove when the locking block and the locking groove are aligned. When the locking block rotates (such as rotating 90 degrees or other angles), the protrusions at both ends of the locking block turn and are restricted inside the locking groove, preventing it from being pulled out directly. This achieves a stable mechanical lock and effectively prevents the screen from accidentally falling off due to vibration or wind pressure.

[0011] Furthermore, a connecting slide rail is installed on the inner side of the outer frame, and a T-shaped groove is opened on the connecting slide rail. A T-shaped connecting strip that matches the T-shaped groove is provided on the back of the upper magnetic strip. The upper magnetic strip slides along the T-shaped groove and is embedded into the connecting slide rail through the T-shaped connecting strip to form a detachable connection between the upper magnetic strip and the connecting slide rail. The connecting slide rail, the outer frame and the upper corner bracket are connected by bolts.

[0012] Furthermore, the mounting groove includes a pressure strip groove opened inside the connecting slide rail. The elastic pressure strip is a long strip-shaped component made of elastic material. The elastic pressure strip is interference-fitted into the pressure strip groove and presses the edge of the mesh body against the bottom and wall of the pressure strip groove.

[0013] It is important to note that the elastic strip is made of materials with a certain degree of flexibility and resilience, such as EPDM rubber, soft PVC, or silicone. In actual installation, because the opening width of the strip groove is slightly smaller than the maximum cross-sectional width of the elastic strip, a special tool or fingers are needed to apply external force to make the strip deform elastically and squeeze it into the groove. Once fully inserted, the strip relies on its own restoring force to tightly press against the inner wall of the strip groove and the edge of the mesh body, forming an interference fit. This not only fixes the mesh but also provides a certain degree of sealing and dust prevention. Moreover, this process does not require the use of any adhesives, ensuring the reversibility of subsequent disassembly and replacement.

[0014] Furthermore, a sealing block is provided at the inner corner of the upper corner frame, which is used to cover the folded part of the mesh body at the corner.

[0015] It should be noted that the closing block protrudes upwards to form a handle structure, making it easy to lift the mesh frame during disassembly. The closing block and the upper corner frame are integrally formed.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This magnetic window screen with reusable screen uses an interference fit structure between the elastic strip and the strip groove to fix the screen. When the screen is damaged or aged, the user only needs to pry open the elastic strip to remove the old screen and install the new screen. There is no need to damage the frame or clean the residual glue. The replacement of the screen is simpler and less time-consuming. It is convenient to flexibly replace screens of different materials, realizes the non-destructive and quick replacement of the screen, and improves its practicality. 2. This magnetic window screen with reusable screen mesh features a T-shaped connecting strip and a T-shaped sliding rail, enabling modular assembly of the magnetic strip. This facilitates the replacement and disassembly of the magnetic strip, and the absence of glue eliminates the need for chemical solvents to remove adhesive when disassembling the window screen, thus improving convenience. 3. This magnetically attached screen window with reusable screen mesh features a mechanical locking mechanism that ensures the stability and safety of the screen window connection in harsh environments. Based on the initial adsorption and positioning provided by the upper and lower magnetic strips, rotating the torsion handle on the upper corner bracket drives the card seat block to rotate and engage with the card slot for limiting, forming a mechanical locking structure. This prevents the screen window from falling off in strong winds or due to accidental collisions, ensuring the stability of the screen window installation. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic representation of the overall structure of the present invention. Figure 2 The diagram shown is a schematic representation of the bottom frame structure of this invention. Figure 3 The diagram shown is a schematic of the bottom structure of the mesh frame of the present invention; Figure 4 The diagram shown is a partial structural schematic of the upper corner frame of this invention; Figure 5 The diagram shown is a schematic diagram of the cross-sectional structure of the connecting slide rail of the present invention; Figure 6 The diagram shown is a schematic of the connecting slide rail structure of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Lower bottom frame; 11. Lower corner bracket; 12. Lower magnetic strip; 13. Snap-fit ​​groove; 2. Mesh frame; 21. Upper corner bracket; 211. Rotating shaft; 212. Snap-fit ​​block; 22. Outer frame; 221. Connecting slide rail; 222. Pressure strip slot; 23. Finishing block; 24. Upper magnetic strip; 241. Connecting strip; 3. Mesh body; 4. Elastic pressure strip. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-6 This embodiment of a magnetically attached screen window with a reusable screen includes a bottom frame 1, a screen frame 2 disposed on the upper end of the bottom frame 1, and a screen body 3 installed inside the screen frame 2. The screen frame 2 and the screen body 3 are detachably connected by an elastic strip 4. The bottom frame 1 is fixed to the window frame, and the screen frame 2 is detachably attached to the bottom frame 1 by magnetic attraction. The screen frame 2 includes a frame body, and an installation groove is provided on the inner edge of the frame body. The edge of the screen body 3 is placed in the installation groove and embedded in the installation groove by the elastic strip 4. The elastic pressing force of the elastic strip 4 fixes the screen body 3 to the frame body. An auxiliary locking component is provided between the bottom frame 1 and the screen frame 2. The auxiliary locking component is used to provide mechanical limiting and fixing on the basis of magnetic connection.

[0021] It should be noted that the bottom frame 1, as the base of the entire screen system, directly affects the adsorption effect of the subsequent screen frame 2. In practical applications, the bottom frame 11 is usually made of high-strength aluminum alloy or engineering plastic to ensure structural strength. The bottom frame 1 can be directly fixed to the reserved holes in the window frame with self-tapping screws, or it can be pasted to the surface of the window frame with high-strength double-sided industrial tape. The removability of the screen frame 2 meets the needs of daily cleaning and maintenance. In addition, the elastic pressure strip 4 is preferably made of EPDM rubber or soft PVC, which can maintain effective clamping force on the screen body 3 under long-term compression and prevent the screen from loosening.

[0022] Please see Figure 1 , Figure 2 In this embodiment, the lower frame 1 is assembled from four lower corner frames 11 and four lower magnetic strips 12. The lower corner frames 11 are L-shaped, and the four lower corner frames 11 are connected end to end to form a rectangular frame structure. The two ends of the lower magnetic strips 12 are respectively embedded and installed between two adjacent lower corner frames 11. The surface of the lower corner frames 11 is provided with a snap-fit ​​groove 13, which is used to cooperate with the auxiliary locking component on the mesh frame 2.

[0023] It should be noted that the modular assembly design not only facilitates transportation and warehousing and reduces logistics costs, but also improves the convenience of maintenance. If a corner frame 11 is damaged, only that corner frame needs to be replaced, without scrapping the entire base frame. The connection between the lower magnetic strip 12 and the lower corner frame 11 can be achieved by interference fit, snap-fit ​​connection, or fixation with a small amount of structural adhesive. The locking groove 13 is opened on the side surface of the lower corner frame 11 facing the interior. The auxiliary locking component on the upper corner frame 21 can be accurately aligned with the locking groove 13. The depth of the locking groove 13 should be slightly greater than the length of the locking block 212 to avoid the bottom from jamming when rotating and locking, which would prevent complete locking.

[0024] Please see Figure 1 , Figure 3 , Figure 4 In this embodiment, the mesh frame 2 includes four upper corner frames 21 and four outer frames 22. The upper corner frames 21 are L-shaped and correspond one-to-one with the lower corner frames 11. The outer frames 22 are connected between two adjacent upper corner frames 21. The inner side of the outer frame 22 is provided with an upper magnetic strip 24. The upper magnetic strip 24 and the lower magnetic strip 12 correspond one-to-one and attract each other to form the adsorption positioning of the mesh frame 2 and the lower bottom frame 1. A closing block 23 is provided at the inner corner of the upper corner frame 21. The closing block 23 is used to cover the folded part of the mesh body 3 at the corner.

[0025] It should be noted that the upper corner frame 21 and the outer frame 22 together constitute the main skeleton of the mesh frame 2. The upper magnetic strip 24 is equipped with a permanent magnet (such as a neodymium iron boron magnet), and its magnetic pole direction is magnetized to ensure that it generates sufficient attraction with the lower magnetic strip 12 to resist gravity and be initially suspended.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the auxiliary locking component includes a rotating shaft 211 disposed on the upper corner frame 21, a torsion handle disposed on the outer end of the rotating shaft 211, and a locking block 212 disposed on the lower end of the rotating shaft 211 and extending to the inner side of the upper corner frame 21. The shape of the locking block 212 is adapted to the locking groove 13, which has a Ф-shaped structure. When the mesh frame 2 is adsorbed onto the lower bottom frame 1, the locking block 212 is inserted into the entrance of the locking groove 13. Rotating the torsion handle drives the rotating shaft 211 and the locking block 212 to rotate, so that the locking block 212 rotates to the limit position inside the locking groove 13.

[0027] It should be noted that the locking groove 13 is a locking groove with a variable cross-section. Its inlet width is less than the maximum width of the internal cavity. When rotated 90 degrees, the long axis of the locking block 212 is perpendicular to the inlet direction, thus it is restricted in the groove and cannot be dislodged. A damping structure is set between the rotating shaft 211 and the upper corner bracket 21 to increase the rotation resistance and ensure the stability of the locking state.

[0028] Please see Figure 1 , Figure 3 , Figure 5 and Figure 6 In this embodiment, a connecting slide rail 221 is installed on the inner side of the outer frame 22. A T-shaped groove is provided on the connecting slide rail 221. A T-shaped connecting strip 241 that is adapted to the T-shaped groove is provided on the back of the upper magnetic strip 24. The upper magnetic strip 24 slides into the connecting slide rail 221 along the T-shaped groove through the T-shaped connecting strip 241 to form a detachable connection between the upper magnetic strip 24 and the connecting slide rail 221. The connecting slide rail 221, the outer frame 22 and the upper corner bracket 21 are connected by bolts. The mounting groove includes a pressure strip groove 222 opened on the inner side of the connecting slide rail 221. The elastic pressure strip 4 is a long strip-shaped component made of elastic material. The elastic pressure strip 4 is inserted into the pressure strip groove 222 with an interference fit and presses the edge of the mesh body 3 against the bottom and wall of the pressure strip groove 222.

[0029] It should be noted that the cooperation between the T-shaped slide and the T-shaped connecting strip 241 enables tool-free disassembly and assembly of the upper magnetic strip 24. During assembly, the upper magnetic strip 24 is first slid into one end of the outer frame 22 until it fills the entire length of the frame. The pressure strip slot 222 is located on the inner side of the connecting slide rail 221 (i.e., the side closest to the center of the mesh). Its cross-sectional shape is usually U-shaped or dovetail-shaped to provide better gripping force. When installing the elastic pressure strip 4, a certain pressure needs to be applied to make it elastically deform and enter the slot. Its restoring force is used to tightly press the mesh body 3, allowing users to pry open the elastic pressure strip 4 at any time to replace meshes of different mesh counts or materials (such as diamond mesh, high-definition mesh, etc.), improving the product's versatility and ease of maintenance.

[0030] The working principle of the above embodiments is as follows: First, securely install the lower frame 1 onto the window frame using screws or adhesive. Next, prepare the screen frame 2, and lay the screen body 3 flat on the inside of the screen frame 2, ensuring the screen is flat and wrinkle-free. Then, align the elastic strip 4 with the strip groove 222 on the inside of the outer frame 22. Use a special roller tool or your fingers to press the elastic strip 4 into the groove segment by segment. Utilize the elastic recoil force of the elastic strip 4 to firmly clamp the edge of the screen body 3 into the groove, completing the screen fixing. Finally, attach the upper magnetic strip 24. The magnetic assembly is completed by sliding the T-shaped connecting strip 241 into the T-shaped slide rail inside the outer frame 22. Holding the mesh frame 2, align the upper magnetic strip 24 on its back with the lower magnetic strip 12 on the lower bottom frame 1. Due to the magnetic force, the mesh frame 2 will automatically attract and adhere to the lower bottom frame 1, achieving initial positioning. At this time, observe the position of the torsion handle on the upper corner bracket 21, ensuring that the card holder block 212 below it is aligned with the entrance of the card slot 13 on the lower corner bracket 11. Gently push the mesh frame 2 so that the card holder block 212 is inserted into the card slot 13. 3. Finally, rotate the torsion handle clockwise (or counterclockwise, depending on the design) by a certain angle to drive the rotating shaft 211 and the locking block 212 to rotate. When the locking block 212 rotates to the limit position, its lateral dimension is blocked by the internal structure of the locking groove 13, preventing it from retracting. This achieves mechanical locking between the screen frame 2 and the lower frame 1. At this time, the screen is both magnetically attracted and mechanically limited, exhibiting extremely high wind pressure resistance and safety. When cleaning or replacing the screen, first rotate the torsion handle in the opposite direction to... Rotate the card holder block 212 back to align with the entrance of the card slot 13 to release the mechanical lock. Then, gently pull open the mesh frame 2 against the magnetic force to remove it from the bottom frame 1. If the mesh needs to be replaced, simply use a flat tool to pry up one end of the elastic pressure strip 4, pull it out of the pressure strip slot 222, remove the old mesh, put in the new mesh, and then press the elastic pressure strip 4 back in. If the magnetic strip is damaged, it can also be directly slid out from the T-shaped slide rail for replacement. The whole process does not require damaging any parts, truly achieving repeated replacement and maintenance.

[0031] It should be noted that although this solution mainly describes rectangular screens, the technical solution is also applicable to square or other polygonal screens.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetically attached screen window with a replaceable mesh, characterized in that: It includes a bottom frame (1), a screen frame (2) set at the top of the bottom frame (1), and a screen body (3) installed inside the screen frame (2). The screen frame (2) and the screen body (3) are detachably connected by an elastic strip (4). The bottom frame (1) is used to fix it to the window frame, and the screen frame (2) is detachably attached to the bottom frame (1) by magnetic attraction. The mesh frame (2) includes a frame body. The inner edge of the frame body is provided with an installation groove. The edge of the mesh body (3) is placed in the installation groove and is embedded in the installation groove by an elastic pressure strip (4). The elastic pressure strip (4) fixes the mesh body (3) to the frame body. An auxiliary locking component is provided between the bottom frame (1) and the mesh frame (2). The auxiliary locking component is used to provide mechanical limiting and fixing on the basis of magnetic connection.

2. The magnetically attached screen window with a reusable screen mesh as described in claim 1, characterized in that: The bottom frame (1) is assembled from four lower corner frames (11) and four lower magnetic strips (12). The lower corner frames (11) are L-shaped. The four lower corner frames (11) are connected end to end to form a rectangular frame structure. The two ends of the lower magnetic strips (12) are respectively embedded and installed between two adjacent lower corner frames (11). The surface of the lower corner frames (11) is provided with a snap-fit ​​groove (13), which is used to cooperate with the auxiliary locking component on the mesh frame (2).

3. A magnetically attached screen window with a reusable screen mesh as described in claim 2, characterized in that: The mesh frame (2) includes four upper corner frames (21) and four outer frames (22). The upper corner frames (21) are L-shaped and correspond one-to-one with the lower corner frames (11). The outer frames (22) are connected between two adjacent upper corner frames (21). The inner side of the outer frame (22) is provided with an upper magnetic strip (24). The upper magnetic strip (24) and the lower magnetic strip (12) correspond one-to-one and attract each other to form the adsorption positioning of the mesh frame (2) and the bottom frame (1).

4. A magnetically attached screen window with a reusable screen mesh as described in claim 3, characterized in that: The auxiliary locking assembly includes a pivot (211) on the upper bracket (21), a torsion handle on the outer end of the pivot (211), and a locking block (212) on the lower end of the pivot (211) and extending to the inner side of the upper bracket (21). The shape of the locking block (212) is adapted to the locking groove (13).

5. A magnetically attached screen window with a reusable screen mesh as described in claim 4, characterized in that: The snap-fit ​​groove (13) has a Ф-shaped structure. When the mesh frame (2) is attached to the bottom frame (1), the snap-fit ​​block (212) is inserted into the inlet of the snap-fit ​​groove (13). The rotating handle drives the rotating shaft (211) and the snap-fit ​​block (212) to rotate, so that the snap-fit ​​block (212) rotates to the limit position inside the snap-fit ​​groove (13).

6. A magnetically attached screen window with a reusable screen mesh as described in claim 5, characterized in that: A connecting slide rail (221) is installed on the inner side of the outer frame (22). A T-shaped groove is provided on the connecting slide rail (221). A T-shaped connecting strip (241) that matches the T-shaped groove is provided on the back of the upper magnetic strip (24). The upper magnetic strip (24) slides along the T-shaped groove and is embedded in the connecting slide rail (221) through the T-shaped connecting strip (241) to form a detachable connection between the upper magnetic strip (24) and the connecting slide rail (221). The connecting slide rail (221), the outer frame (22), and the upper corner bracket (21) are connected by bolts.

7. A magnetically attached screen window with a reusable screen mesh as described in claim 6, characterized in that: The mounting groove includes a pressure strip groove (222) opened inside the connecting slide rail (221). The elastic pressure strip (4) is a long strip-shaped component made of elastic material. The elastic pressure strip (4) is inserted into the pressure strip groove (222) with an interference fit, and presses the edge of the mesh body (3) against the bottom and wall of the pressure strip groove (222).

8. A magnetically attached screen window with a reusable screen mesh as described in claim 7, characterized in that: A closing block (23) is provided at the inner corner of the upper corner frame (21). The closing block (23) is used to cover the folded part of the mesh body (3) at the corner.

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