A detachable screen door and window

Abstract

The present application belongs to the technical field of screen door and window, and discloses a detachable screen door and window, which comprises a door and window frame body, a screen, a screen box assembly, a moving handle and a rail chain assembly. The screen box assembly is detachably arranged on the door and window frame body. The moving handle is slidingly fitted in the door and window frame body. The rail chain assembly serves as the bottom frame of the door and window frame body and movably connects the moving handle and the door and window frame body. The moving handle is detachably connected with the screen wound on the screen box assembly. The detachable connection between the fixed part and the side frame enables the movable part to be fixed and detached, and enables the fixed part to be better folded. The detachable arrangement of the screen box assembly and the screen enables the screen box assembly and the screen to be separated from the door and window frame body or assembled on the door and window frame body, which is more convenient for transportation, disassembly and replacement and further improves the practicability.

Description

Technical Field

[0001] This invention belongs to the field of screen door and window technology, and specifically relates to a detachable screen door and window. Background Technology

[0002] Screen doors and windows, including screen doors and screen windows, primarily serve to prevent mosquitoes and other insects. With the continuous improvement of people's living standards, more and more screen doors are appearing on the market. Current screen doors and windows mainly consist of a top frame beam, a frame with a screen box assembly, and a track chain. A portion of the top frame beam can be rotated to fold up for easy transportation and installation. However, the degree of disassembly of the door and window frame is low, making it difficult to disassemble and replace the screen box and screen mesh. Transportation efficiency is also poor, and the fixing effect and disassembly flexibility of the movable parts of the top frame beam are not ideal. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a detachable screen door / window to solve the problem of poor transportation and disassembly / reassembly effects caused by the low degree of detachability of existing screen doors / windows.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A detachable screen door / window includes a door / window frame, a screen, a screen box assembly, a movable handle, and a track chain assembly. The screen box assembly is detachably mounted on the door / window frame. The movable handle is slidably mounted inside the door / window frame. The track chain assembly serves as the bottom edge of the door / window frame and movably connects the movable handle and the door / window frame. The movable handle is detachably connected to the screen rolled up in the screen box assembly, so that the movable handle, screen, and screen box assembly can be separated from or assembled onto the door / window frame. The door and window frame includes a top frame beam and a side frame edge perpendicular to the top frame beam. The top frame beam includes a fixed part and a movable part along the axial direction. The movable part is hinged to the fixed part so that the movable part can switch between a use state and a folded state. The side frame edge is detachably connected to the movable part of the top frame beam. In the usage state, the movable part is parallel to the fixed part along the axis of the top frame beam, and in the folded state, the movable part is perpendicular to the axis of the top frame beam and abuts against the movable handle that moves to the bottom of the fixed part.

[0005] In one possible implementation, the movable part of the top frame beam is detachably connected to the side frame edge via a snap-fit ​​assembly. The snap-fit ​​assembly includes a snap-fit ​​member having a snap-fit ​​part one and a snap-fit ​​part two. The snap-fit ​​part one is snapped into the cavity of the top frame beam along the axial direction of the top frame beam, and the snap-fit ​​part two is snapped into the cavity of the side frame edge along the axial direction of the side frame edge.

[0006] In a possible implementation, the snap-fit ​​assembly further includes a limiting plate, which is snap-fitted onto the snap-fit ​​member in a second direction perpendicular to the axial direction of the top frame beam, such that the limiting plate simultaneously abuts against the top frame beam and the side frame edge.

[0007] In a possible implementation, the track chain assembly is connected to the moving handle via a traction line assembly. The traction line assembly includes a first rope and a second rope. One end of the first rope is fixed inside the fixed part of the top frame beam, and the other end of the first rope passes through the cavity of the movable part into the cavity of the moving handle and, after passing around the winding point one at the bottom of the moving handle cavity, connects to the track chain assembly in the opposite direction. One end of the second rope is fixed inside the movable part, and the other end of the second rope passes through the cavity of the moving handle and connects to the track chain assembly.

[0008] In one possible implementation, the door / window frame is provided with a slot adapted to the screen box assembly, and the screen box assembly is fitted into the slot.

[0009] In one possible implementation, the slot has a positioning groove at its end along the axial direction of the mesh box assembly, and the mesh box assembly has a positioning mating part that engages with the positioning groove in a first direction perpendicular to the axial direction of the mesh box assembly.

[0010] In a possible implementation, the track chain assembly includes several sets of track chain assemblies and flexible connectors. The track chain assembly is provided with a guide groove for cooperating with the yarn mesh. The flexible connectors connect several track chain assemblies in series to form a track chain body that can bend and move in a first plane. The track assembly includes a guide rail component and a movable seat. The guide rail component is movably connected to the movable seat, allowing the movable seat to rotate relative to the guide rail component within a second plane. The second plane is perpendicular to the first plane. The movable seat is provided with a mounting part for movable installation on the ground rail bridge.

[0011] In a possible implementation, the movable seat is provided with a movable cavity, and the guide rail component is provided with a rotating shaft component, which passes into the movable cavity and rotates with the movable cavity within a preset angle range; The outer circumferential surface of the rotating shaft component is provided with a limiting protrusion, and the side wall of the movable cavity is provided with a limiting groove. The limiting protrusion is movably fitted in the limiting groove in the circumferential direction of the rotating shaft component.

[0012] In a possible implementation, the limiting groove includes a placement cavity and a limiting cavity distributed circumferentially along the movable cavity, the placement cavity and the limiting cavity being connected and communicated, the movable seat having an installation port communicating with the placement cavity for the insertion of the rotating shaft component, the limiting protrusion of the rotating shaft component being able to move between the placement cavity and the limiting cavity by rotation, the limiting protrusion forming a limiting engagement with the movable seat in the axial direction of the rotating shaft component when in the limiting cavity.

[0013] In one possible implementation, a ground rail bridge with guide rails is also included. The mounting part includes a second guide groove that movably engages with the guide rails. The second guide groove is clearance-fitted with the guide rails so that the movable seat can move relative to the ground rail bridge within a second plane.

[0014] In a possible implementation, the guide groove two includes a first mating part and a second mating part distributed along the sliding direction on both sides of the groove surface that mate with the guide rail. An included angle is provided between the first mating part and the second mating part. The first mating part and the second mating part are switched to mate with the guide rail by rotating the movable seat. When the movable seat mates with the guide rail via the first mating part, the distance between the mating surfaces of the first mating part and the guide rail is 'a'. When the movable seat mates with the guide rail via the second mating part, the distance between the mating surfaces of the second mating part and the guide rail is 'b'. 'b' is greater than the width of the guide rail to disengage from the guide rail or adjust the relative angle between the guide rail component and the movable seat. Where 'a' is less than 'b'. The first mating part and the second mating part on both sides of the guide groove two are centrally symmetrically arranged.

[0015] In one possible implementation, the guide rail is a T-shaped guide rail, and the mating part is provided with a slot for longitudinally positioning and engaging with the T-shaped guide rail. The groove surface where the card slot and the guide rail are in longitudinal upper limit engagement is an inclined surface; and / or, the length of the first engagement part engaging with the guide rail in the sliding direction is less than the length of the second engagement part engaging with the guide rail.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The detachable screen door and window of the present invention, through the detachable connection between the fixing part and the side frame, allows the movable part to be fixed and disassembled, and also allows the fixing part to be folded and folded better. Furthermore, the detachable setting of the screen box assembly and the screen mesh allows them to be separated from or assembled onto the door and window frame, which makes it easier to transport, disassemble and replace, and further improves its practicality.

[0017] Furthermore, the snap-fit ​​component allows the movable part of the top frame beam to be detachable while also having excellent fixing effect, which can effectively support the top frame beam. In addition, the limiting plate makes the movable part more stable and reliable with the side frame, and less prone to displacement.

[0018] Meanwhile, the access rope assembly allows the track chain assembly to be flexibly extended and retracted as the moving handle moves, making the moving handle more stable and reliable during movement. Furthermore, the mesh box assembly is easy to install and remove via a slot installation method, and the positioning structure makes installation more convenient.

[0019] Furthermore, by adopting a split, relatively rotatable structure design for the track chain assembly as a unit component, when the movable seat of each track chain assembly rotates at a certain angle, it cooperates with the mounting part for movable installation on the ground track bridge to guide the entire track chain to offset at a certain angle. This solves the problem of installation error of the ground track bridge on the horizontal plane, making installation more flexible and convenient. Through the gap fit between the guide rail of the ground track bridge and the movable seat, it is easier for the movable seat to rotate within a small angle range on the guide rail. Moreover, through the first and second mating parts of the guide groove, it can switch between windproof and derailed states during use. In the windproof state, it has a good windproof effect. In the derailed state, it can be easily detached from the guide rail and stored in the moving handle of the screen door and window, which is convenient and practical. Attached Figure Description

[0020] Figure 1 This is a first-person perspective stereoscopic view of a detachable screen door / window. Due to model rendering limitations, the track chain assembly in this figure is not connected to the movable handle. Figure 2 A stereoscopic view of a detachable screen door / window from a second perspective; Figure 3 An explosion diagram of a detachable screen door / window; Figure 4 This is a schematic diagram of a detachable screen door / window without the screen box installed. Figure 5 This is a schematic diagram illustrating the transportation status of a detachable screen door / window in its folded state. Figure 6 A schematic diagram of the structure of a snap-fit ​​assembly for a detachable screen door / window; Figure 7 A schematic diagram illustrating the wiring principle of a detachable screen door / window pull line assembly; Figure 8 A first-person perspective stereoscopic view of a track chain assembly for a detachable screen door / window. Figure 9 A stereoscopic view of a detachable screen door / window track assembly from a second perspective; Figure 10 An exploded view of the track assembly of a detachable screen door / window; Figure 11 A perspective view of the guide rail component of a chain assembly for a detachable screen door / window. Figure 12 A perspective view of the movable seat of the track assembly of a detachable screen door / window; Figure 13 A perspective view of the guide groove 2 of the movable seat of a detachable screen door / window track assembly; Figure 14 A perspective view of the movable seat of a detachable screen door / window track assembly in a bottom-view direction; Figure 15 A perspective view of a detachable screen door / window track assembly installed on a ground track bridge; Figure 16 This is a schematic diagram showing the cooperation between a detachable screen door / window track chain assembly and a ground track bridge in a windproof state. Figure 17 A perspective view of a detachable screen door / window track chain assembly and ground track bridge in a derailed state; Figure 18 A front view of a detachable screen door / window track assembly and ground track bridge in a derailed state.

[0021] In the diagram: 1-track assembly; 11-guide rail component; 111-guide groove one; 112-rotating shaft component; 113-limiting protrusion; 114-positioning part two; 115-rotating slide; 12-movable seat; 121-guide groove two; 1211-fitting part two; 1212-fitting part one; 1213-sloping surface; 122-limiting groove; 1221-limiting cavity; 1222-placement cavity; 123-movable cavity; 124-rotating protrusion; 125-straight section fitting part; 126 - Arc segment mating part; 127- Positioning part one; 128- Mounting port; 13- End head; 2- Guide head; 3- Traction head; 4- Ground rail bridge; 5- Top frame beam; 51- Fixing part; 52- Movable part; 6- Mesh box assembly; 61- Positioning mating part; 62- Slot; 63- Positioning slot; 7- Moving handle; 8- Side frame edge; 9- Snap-fit ​​component; 91- Snap-fit ​​part two; 92- Snap-fit ​​part one; 93- Snap hole; 94- Limiting plate; 101- Rope one; 102- Rope two. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to specific embodiments.

[0023] Please refer to Figure 1-6As shown, an embodiment of this application provides a detachable screen door / window, including a door / window frame, a screen (not shown in the figure), a screen box assembly 6, a movable handle 7, and a track chain assembly. The screen box assembly 6 is detachably disposed on the door / window frame. The movable handle 7 is slidably installed inside the door / window frame. The track chain assembly serves as the bottom frame edge of the door / window frame and movably connects the movable handle 7 and the door / window frame. The movable handle 7 is detachably connected to the screen rolled up in the screen box assembly 6, so that the movable handle 7, the screen, and the screen box assembly 6 can be separated from or assembled onto the door / window frame.

[0024] The door and window frame is a frame structure without a traditional bottom frame edge. A track chain assembly serves as the bottom frame edge, facilitating the sliding installation of the screen. In practical use, it can be used in conjunction with a ground track bridge 4. The screen box assembly 6 is used for winding and unwinding the screen. It is detachably installed on the door and window frame, specifically on the left side of the frame edge. The screen box assembly 6 is connected to the moving handle 7 via the screen. The moving handle 7 moves the screen, and the detachable connection between the moving handle 7 and the screen allows the screen to be separated from the moving handle 7 for disassembly or assembly together with the screen box assembly 6, also facilitating transportation. The track chain assembly functions similarly to existing door and window tracks, synchronously winding and unwinding the screen as the moving handle 7 moves it, ensuring the screen's wind resistance and tension.

[0025] In an embodiment of this application, the door and window frame includes a top frame beam 5 and a side frame edge 8 perpendicular to the top frame beam 5. The top frame beam 5 includes a fixed part 51 and a movable part 52 along the axial direction. The movable part 52 is hinged to the fixed part 51 so that the movable part 52 can switch between a use state and a folded state. The side frame edge 8 is detachably connected to the movable part 52 of the top frame beam 5. In the use state, the movable part 52 is parallel to the fixed part 51 along the axis of the top frame beam 5. In the folded state, the movable part 52 is perpendicular to the axis of the top frame beam 5 and abuts against a movable handle 7 that moves to below the fixed part 51.

[0026] The top frame beam 5 of the door and window frame is used to cooperate with the top of the screen. The side frame mainly refers to the right side frame, which is used to support and install the top frame beam 5. The top frame beam 5 can be folded, specifically through the movable part 52, which is hinged to the fixed part 51. After folding, it can fit with the movable handle 7, which moves below the fixed part 51. This folding of the movable part 52 reduces the horizontal length and space occupied by the screen, making it easier to transport in the folded state. During installation, it can be reset so that it is axially aligned with the fixed part 51 and connected to the side frame edge 8, thus fixing the movable part 52. In this way, the installation method with a higher degree of disassembly facilitates transportation, disassembly, and replacement, improving practicality.

[0027] Through the above technical solution, the fixing part 51 and the side frame are detachably connected, which allows the movable part 52 to be fixed and disassembled, and also allows the fixing part 51 to be folded and retracted better. Furthermore, the screen box assembly and screen mesh are detachably set so that they can be separated from the door and window frame or assembled on the door and window frame, which makes it easier to transport, disassemble and replace, and further improves practicality.

[0028] In one embodiment, the movable part 52 of the top frame beam 5 is detachably connected to the side frame edge 8 via a snap-fit ​​assembly. The snap-fit ​​assembly includes a snap-fit ​​member 9, which has a first snap-fit ​​part 92 and a second snap-fit ​​part 91. The first snap-fit ​​part 92 is snapped into the cavity of the top frame beam 5 along the axial direction of the top frame beam 5, and the second snap-fit ​​part 91 is snapped into the cavity of the side frame edge 8 along the axial direction of the side frame edge 8.

[0029] In this way, the snap-fit ​​component 9 of the snap-fit ​​assembly is installed in the cavity of the top frame beam 5 and the cavity of the side frame edge 8 through the snap-fit ​​part 1 92 and the snap-fit ​​part 2 respectively. This enables the movable part 52 to be effectively connected and fixed with the side frame, which has better stability. When disassembling, it is only necessary to first remove the side frame edge 8 to disassemble it from the movable part 52 of the top frame beam 5.

[0030] Furthermore, in order to improve the stability and aesthetics of the snap-fit ​​assembly after connection, the snap-fit ​​assembly also includes a limiting plate 94. The limiting plate 94 is snap-fitted onto the snap-fit ​​member 9 in a second direction perpendicular to the axis of the top frame beam 5, so that the limiting plate 94 simultaneously abuts against the top frame beam 5 and the side frame edge 8.

[0031] In this way, after the limiting plate 94 is snapped onto the snap-fit ​​component 9, it can simultaneously abut against the movable part 52 of the top frame beam 5 and the side frame edge 8, so that the movable part 52 and the side frame edge 8 can be relatively fixed, better preventing the movable part 52 from shifting in the direction perpendicular to the mesh. At the same time, the limiting plate 94 can also cover gaps, improve the visual aesthetics, and make the structure simpler. Specifically, the limiting plate 94 is provided with a locking block, and the snap-fit ​​component 9 is provided with a locking hole 93, which is inserted and fitted with the locking block.

[0032] Please refer to Figure 7 As shown in the embodiment of this application, the track chain assembly is connected to the movable handle 7 via a traction line assembly. The traction line assembly includes a first rope 101 and a second rope 102. One end of the first rope 101 is fixed in the fixing part 51 of the top frame beam 5, and the other end of the first rope 101 passes through the cavity of the movable part 52 into the cavity of the movable handle 7 and passes around the winding point one at the bottom of the cavity of the movable handle 7 before connecting to the track chain assembly in the opposite direction. One end of the second rope 102 is fixed in the movable part 52, and the other end of the second rope 102 passes through the cavity of the movable handle 7 and connects to the track chain assembly.

[0033] The end 13 of the track chain assembly located inside the moving handle 7 is suspended inside by the traction line assembly. The traction line assembly can achieve traction balance in different directions when the moving handle 7 drives the track chain assembly to bend or lay flat, thereby making the movement of the track chain assembly smoother and more stable. The traction line assembly includes a first rope 101 and a second rope 102. One end of the first rope 101 is fixedly connected to the cavity of the fixed part 51, and the other end passes through the cavity and into the cavity of the movable part 52. Then, it turns downward through a pulley two, which is set at the top of the cavity of the movable handle 7 as the second winding point, and extends downward to the bottom of the cavity. It then turns around a pulley one, which is set there as the first winding point, and connects to the end 13 of the track chain assembly in the opposite direction of the longitudinal upward direction. This completes the wiring of the first rope 101. One end of the second rope 102 is fixed in the movable part 52, specifically in the cavity of the movable part 52 away from the fixed part 51. The other end of the second rope 102 passes into the cavity of the movable handle 7, and passes around a pulley three, which is set in the cavity of the movable handle 7 as the third winding point, and then extends downward to connect to the end 13 of the track chain assembly. This completes the wiring of the second rope 102. By using the above wiring method, the forces on both sides of the track chain assembly can be balanced when it moves with the moving handle 7, thereby making the moving handle 7 more stable when pushing and pulling.

[0034] In a preferred embodiment of the installation structure of the mesh box assembly 6, combined with Figure 3 and Figure 6As shown, the door and window frame is provided with a slot 62 that is adapted to the screen box assembly 6, and the screen box assembly 6 is fitted into the slot 62; the slot 62 is provided with a positioning groove 63 at the end along the axial direction of the screen box assembly 6, and the screen box assembly 6 is provided with a positioning mating part 61 that is concave and convex with the positioning groove 63 in a first direction, the first direction being perpendicular to the axial direction of the screen box assembly 6.

[0035] The mesh box assembly 6 can be installed by snap-fitting through the slot 62. Specifically, the slot 62 has positioning slots 63 at both ends, and the mesh box assembly 6 has positioning mating parts 61 at both ends that are adapted to the positioning slots 63. The positioning mating parts 61 and the positioning slots 63 can be positioned and installed by the concave-convex fit in the first direction, which can better enable snap-fitting.

[0036] In the specific installation process of screen doors and windows, an installation frame (not shown in the figure) can also be used for installation. That is, the installation frame is installed inside the door or window opening, and then the screen door or window is installed in the installation frame.

[0037] Please refer to Figures 8-18 As shown in the embodiments of this application, the track chain assembly includes several sets of track chain assemblies 1 and flexible connectors (not shown in the figure). The track chain assembly is provided with guide grooves 111 for cooperating with the yarn mesh. The flexible connectors connect several track chain assemblies 1 in series to form a track chain body that can be bent in a first plane.

[0038] The chain track assembly is a unit component of the screen door and window chain track. Multiple chain track assemblies are connected together by steel wire ropes or ball chain ropes to form the main body of the chain track. This connected chain track body can bend within a first plane, thus achieving the same function as an existing chain track. That is, by bending in the first plane, it can retract into the moving handle of the screen door or window or fall back onto the floor track. Because the chain track can only bend in the plane where the screen mesh is located, it cannot translate or bend in other planes or directions. For example, if the distance between the floor track bridge 4 and the wall is unequal in the length direction, i.e., there is a certain installation error, the chain cannot be adjusted in a certain way on the horizontal plane, making the chain track track difficult to install. It is necessary to reinstall the floor track bridge 4, which is time-consuming and labor-intensive.

[0039] To solve the above-mentioned technical problems, in the embodiments of this application, the track assembly 1 includes a guide rail component 11 and a movable seat 12. The guide rail component 11 is movably connected to the movable seat 12, so that the movable seat 12 can rotate relative to the guide rail component 11 in the second plane in which it is located. The second plane is perpendicular to the first plane. The movable seat 12 is provided with a mounting part for being movably installed on the ground track bridge 4.

[0040] The guide rail component 11 is movably connected to the movable seat 12, allowing the movable seat 12 to rotate relative to the guide rail component 11 within a second plane. Since the movable seat 12 can rotate a certain angle relative to the guide rail component 11 on the second plane (horizontal plane), and is movably mounted on the ground rail bridge 4, the position of the guide rail component 11 (i.e., the rail chain) can be adjusted by the rotation and translation of the movable seat 12, thereby causing the entire rail chain to translate a certain distance. This solves the problem of installation errors on the ground rail bridge 4. The mounting part on the movable seat 12 can movably engage with the ground rail bridge 4, and the engagement can include, but is not limited to, rotation and movement.

[0041] It is understandable that the movable seat 12 of each set of track components 1 can rotate at a certain angle relative to the guide rail component 11 and perform movements including translation relative to the guide rail. Therefore, the movable seat 12 of each set of track components 1 can successively and cumulatively change the position of each guide rail component 11 on the second plane, thereby guiding the entire track chain to the desired target position and solving the problem of installation errors in the ground rail bridge 4. Of course, it can also be used normally when there are no installation errors, so this type of track chain has a wider range of applications and higher practicality.

[0042] Through the above technical solution, the track chain assembly, as a track chain unit, adopts a split and relatively rotatable structural design. When the movable seat 12 of each track chain assembly rotates at a certain angle, it cooperates with the mounting part used for movable installation on the ground track bridge 4 to guide the track chain to shift at a certain angle, thereby solving the problem of installation error of the ground track bridge 4 on the horizontal plane, making the installation more flexible and convenient.

[0043] Please refer to Figures 10-12 As shown, in one embodiment, the movable seat 12 is provided with a movable cavity 123, and the guide rail component 11 is provided with a rotating shaft component 112. The rotating shaft component 112 passes into the movable cavity 123 and rotates and cooperates with the movable cavity 123 within a preset angle range.

[0044] In this way, the guide rail component 11 is rotatably fitted within the movable cavity 123 of the movable seat 12 via the rotating shaft component 112. This makes the relative rotation between the guide rail component 11 and the movable seat 12 more stable and reliable. Furthermore, by limiting their rotation within a preset angle range, better performance can be achieved, and excessive rotation can be avoided from affecting usability. In specific implementations, the rotation angle can be in the range of 10°-45°, and the specific configuration can be selected according to actual conditions or requirements.

[0045] In order to achieve relative rotation between the rotating component and the movable seat 12 at a preset angle, the outer peripheral surface of the rotating shaft component 112 is provided with a limiting protrusion 113, and the side wall of the movable cavity 123 is provided with a limiting groove 122. The limiting protrusion 113 is movably engaged in the limiting groove 122 in the circumferential direction of the rotating shaft component 112.

[0046] In this way, the rotating shaft component 112 can be circumferentially fitted in the limiting groove 122 through the limiting protrusion 113. The limiting protrusion 113 rotates within the limiting groove 122 within the limiting angle range of the limiting groove 122, thus realizing the relative rotation between the rotating component and the movable seat 12 at a preset angle.

[0047] Considering the issues of manufacturing and assembling the track assembly, in the embodiments of this application, the limiting groove 122 may include a placement cavity 1222 and a limiting cavity 1221 distributed circumferentially along the movable cavity 123. The placement cavity and the limiting cavity 1221 are connected and communicate with each other. The movable seat 12 is provided with an installation port 128 that communicates with the placement cavity 1222 for the rotating shaft component 112 to be installed. The limiting protrusion 113 of the rotating shaft component 112 can be switched between the placement cavity 1222 and the limiting cavity 1221 by rotation. When the limiting protrusion 113 is in the limiting cavity 1221, it forms a limiting engagement with the movable seat 12 in the axial direction of the rotating shaft component 112.

[0048] The limiting groove 122 includes two cavities, namely the placement cavity 1222 and the limiting cavity 1221, which are connected to each other in the circumferential direction so that the limiting protrusion 113 can switch back and forth between the placement cavity 1222 and the limiting cavity 1221 by rotation. The mounting port 128 on the movable seat 12 facilitates the insertion of the rotating shaft component 112. The mounting port 128 matches the contour of the rotating shaft component 112, which makes it easier to insert. When the rotating shaft component 112 is inserted into the placement cavity 1222, it can be rotated to switch to the limiting cavity 1221. When it is in the limiting cavity 1221, the limiting protrusion 113 can form a limiting fit with the top wall of the movable cavity 123, i.e., the movable seat 12 as a whole, in the axial direction of the rotating shaft component 112. In this way, the rotating shaft component 112 and the movable seat 12 will basically not fall off when rotating at a small angle. During use, it will not fall off due to the gravity of the screen. Furthermore, it is easy to disassemble and assemble when in the placement cavity 1222. Therefore, the above structure can achieve better rotation and disassembly effects.

[0049] Based on this, some configurations can be made. For example, in one embodiment, the limiting groove 122 and the limiting protrusion 113 are arranged in pairs along the circumference and the two sets are arranged in a centrally symmetrical manner. By setting two sets in the circumference, the rotation can be made more stable and reliable, and the force can be made more reasonable.

[0050] In another embodiment, one of the rotating shaft component 112 and the movable cavity 123 is provided with a positioning part 127 and the other is provided with a positioning part 2 114. The positioning part 127 and the positioning part 2 114 are inserted and can rotate relative to each other in the circumferential direction. The positioning part 127 and the positioning part 2 114 can make the rotating shaft component 112 positioned when it is inserted into the movable cavity 123, so that it can be accurately and conveniently inserted into place, further improving its practicality.

[0051] Please refer to Figure 13 and 15 - Figure 18 As shown, in the embodiments of this application, a ground rail bridge 4 with a guide rail is also included. The mounting part includes a guide groove 121 that is movably engaged with the guide rail. The guide groove 121 is clearance-fitted with the guide rail so that the movable seat 12 can move relative to the ground rail bridge 4 in the second plane.

[0052] The ground rail bridge 4 is used to install the rail chain. It cooperates with the mounting part of the movable seat 12 through the set guide rail. The mounting part preferably adopts a groove-shaped guide groove 121 that is clearance-fitted with the guide rail. The clearance fit makes a certain gap between the guide groove 121 and the guide rail. This gap facilitates movement, such as rotation or translation, so that the movable seat 12 can move relative to the guide rail in the second plane, thereby realizing the adjustment of the position of the rail chain.

[0053] In one embodiment, the guide groove 121 includes a first mating part 1212 and a second mating part 1211 connected along the sliding direction on both sides of the groove surface that mates with the guide rail. An included angle is provided between the first mating part 1212 and the second mating part 1211. The first mating part 1212 and the second mating part 1211 are switched to mate with the guide rail by rotating the movable seat 12. When the movable seat 12 mates with the guide rail via the first mating part 1212, the distance between the mating surfaces of the first mating part 1212 and the guide rail is 'a'. When the movable seat 12 mates with the guide rail via the second mating part 1211, the distance between the mating surfaces of the second mating part 1211 and the guide rail is 'b'. 'b' is greater than the width of the guide rail to disengage from the guide rail or adjust the relative angle between the guide rail member 11 and the movable seat 12. Where 'a' is less than 'b'. The first mating part 1212 and the second mating part 1211 on both sides of the guide groove 121 are centrally symmetrically arranged.

[0054] The use of mating parts 1212 and 1211, with an included angle, facilitates rotation and switching between them to engage with the guide rail. The spacing between these parts and the guide rail ensures that mating part 1212 maintains a basic fit with the guide rail, while mating part 1211, with its larger distance from the guide rail, easily disengages and retracts into the handle, similar to existing track chains. This design is more rational and efficient. Specifically, the included angle is the acute angle formed by the intersection of the planes containing mating parts 1212 and 1211, ranging from 10° to 45°.

[0055] To facilitate better windproof performance, the guide rail is further provided as a T-shaped guide rail, and the mating part 1212 is provided with a slot for longitudinal upper limit engagement with the T-shaped guide rail.

[0056] In this way, the T-shaped guide rail can form a better longitudinal limiting relationship with the slot, thereby achieving a windproof effect. Furthermore, since it is a clearance fit, there is still a certain gap between the two, which also facilitates a certain degree of relative movement.

[0057] Based on this, to facilitate better switching between mating part one 1212 and mating part two 1211, the groove surface of the slot that engages with the guide rail in the longitudinal direction is an inclined surface 1213. The inclined surface 1213 allows for easy switching between mating part one 1212 (with a smaller gap from the guide rail) and mating part two 1211 (with a larger gap) under the pushing and pulling force of the moving handle. This ensures smooth switching. Specifically, since mating part one 1212 mainly engages with the guide rail through the inclined surface 1213 at its bottom, under the traction of the flexible connector, the moving handle of the screen door / window exerts a primarily upward force on the guide rail component 11 when the chain rail assembly 1 is about to retract into the moving handle. When the movable seat 12 moves upward, the inclined surface 1213 decomposes the longitudinal force into a force that causes the movable seat 12 to rotate. The weight allows the movable seat 12 to rotate at a certain angle and switch to the mating part 2 1211, which has a larger distance from the guide rail. Since the distance between the mating part 2 1211 and the guide rail is greater than the width of the guide rail, the movable seat 12 can disengage from the guide rail and then smoothly retract into the moving handle. The other chain rail components work on the same principle, thus enabling the switching of the mating part 1 1212 and the mating part 2 1211 and their retraction into the moving handle. When the chain exits from the moving handle and lies flat on the guide rail, since the relative angle between the movable seat 12 and the guide rail component 11 is in a derailed state, it will directly lock onto the guide rail when it falls onto it, thus completing the mating with the guide rail. It should be noted that the windproof state needs to be switched according to the usage requirements. When the track chain falls back onto the guide rail, it is not necessary or necessary to switch from the derailment state to the windproof state. When windproof is required, the movable seat 12 can be manually rotated to switch to the windproof state, so that the slot of the mating part 1212 and the T-shaped guide rail form a limiting fit in the longitudinal direction, thus realizing the switching of the windproof state.

[0058] To further improve the ease of rotation of the movable seat 12 on the guide rail, the length of the first mating part 1212 that mates with the guide rail in the sliding direction is less than the length of the second mating part that mates with the guide rail.

[0059] In this way, the shorter mating part 1212 can be rotated and switched more easily.

[0060] In order to better restrict the rotation of the movable seat 12 and the guide rail component 11 within a preset angle range, in the embodiments of this application, one of the movable seat 12 and the guide rail component 11 is provided with a rotating groove 115, and the other is provided with a rotating protrusion 124. The rotating protrusion 124 and the rotating groove 115 slide upward along the rotating ring of the guide rail component 11, and the rotation direction of the rotating protrusion 124 and the rotating groove 115 is parallel to the rotation direction of the rotating shaft component 112 in the movable cavity 123.

[0061] A rotating groove 115 and a rotating protrusion 124 are respectively provided on the movable seat 12 and the guide rail component 11. Preferably, the rotating groove 115 is provided at the bottom of the movable seat 12 and the rotating protrusion 124 is provided at the top of the rotating component. The rotating groove 115 and the rotating protrusion 124 are matched with each other and can rotate relative to each other within a certain angle range. This can better limit the rotation angle of the rotating shaft component 112 in the movable cavity 123, and facilitate the assembly of the guide rail component 11 and the movable seat 12 and provide better stability after assembly.

[0062] Preferably, both the rotating groove 115 and the rotating protrusion 124 include interconnected arc segment mating portions 126 and straight segment mating portions 125. When the straight segment mating portion 125 of the rotating protrusion 124 rotates and slides along the arc segment mating portion 126 of the rotating groove 115 to the straight segment mating portion 125, the limiting protrusion 113 of the rotating shaft member 112 switches from the placement cavity position 1222 to the limiting cavity position 1221.

[0063] When the arc segment fitting part 126 of the rotating protrusion 124 slides along the arc segment fitting part 126 of the rotating slide groove 115, the movable seat 12 can rotate at a preset angle. When the straight segment fitting part 125 of the rotating slide groove 115 is in contact with the straight segment fitting part 125 of the rotating protrusion 124, a limiting relationship can be formed, and it can no longer rotate. This can better restrict the rotation of the guide rail component 11 and the movable seat 12, making the rotation more stable and reliable.

[0064] In the specific implementation process, please refer to Figure 8 and Figure 9 As shown, the screen door and window track chain includes a traction head 3 and a guide head 2 located at both ends of the track chain body. The traction head 3 is used to fix the flexible connector and connect to the flexible connector in the moving handle, while the guide head 2 is provided with a guide groove that connects to the guide groove 111. This guide groove facilitates the entry and exit of the screen.

[0065] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be considered as limitations on the present invention, and the scope of protection of the present invention should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A detachable screen door / window, characterized in that, The device includes a door / window frame, a screen, a screen box assembly, a movable handle, and a track chain assembly. The screen box assembly is detachably mounted on the door / window frame. The movable handle is slidably mounted inside the door / window frame. The track chain assembly serves as the bottom edge of the door / window frame and movably connects the movable handle and the door / window frame. The movable handle is detachably connected to the screen rolled up in the screen box assembly, so that the movable handle, screen, and screen box assembly can be separated from or assembled onto the door / window frame. The door and window frame includes a top frame beam and a side frame edge perpendicular to the top frame beam. The top frame beam includes a fixed part and a movable part along the axial direction. The movable part is hinged to the fixed part so that the movable part can switch between a use state and a folded state. The side frame edge is detachably connected to the movable part of the top frame beam. In the usage state, the movable part is parallel to the fixed part along the axis of the top frame beam, and in the folded state, the movable part is perpendicular to the axis of the top frame beam and abuts against the movable handle that moves to the bottom of the fixed part.

2. A detachable screen door / window as described in claim 1, characterized in that, The movable part of the top frame beam is detachably connected to the side frame edge via a snap-fit ​​assembly. The snap-fit ​​assembly includes a snap-fit ​​member having a snap-fit ​​part one and a snap-fit ​​part two. The snap-fit ​​part one is snapped into the cavity of the top frame beam along the axial direction of the top frame beam, and the snap-fit ​​part two is snapped into the cavity of the side frame edge along the axial direction of the side frame edge.

3. A detachable screen door / window as described in claim 2, characterized in that, The snap-fit ​​assembly also includes a limiting plate, which is snap-fitted onto the snap-fit ​​member in a second direction perpendicular to the axial direction of the top frame beam, so that the limiting plate simultaneously abuts against the top frame beam and the side frame edge.

4. A detachable screen door / window as described in claim 1, characterized in that, The track chain assembly is connected to the movable handle via a traction line assembly. The traction line assembly includes a first rope and a second rope. One end of the first rope is fixed inside the fixed part of the top frame beam, and the other end of the first rope passes through the cavity of the movable part, enters the cavity of the movable handle, and then connects to the track chain assembly in the opposite direction after passing around the winding point one at the bottom of the movable handle cavity. One end of the second rope is fixed inside the movable part, and the other end of the second rope passes through the cavity of the movable handle and connects to the track chain assembly.

5. A detachable screen door / window as described in claim 1, characterized in that, The door and window frame is provided with a slot that is compatible with the screen box assembly, and the screen box assembly is fitted into the slot. The slot has a positioning groove at its end along the axial direction of the mesh box assembly. The mesh box assembly has a positioning mating part that engages with the positioning groove in a first direction, which is perpendicular to the axial direction of the mesh box assembly.

6. A detachable screen door / window as described in any one of claims 1-5, characterized in that, The track chain assembly includes several sets of track chain assemblies and flexible connectors. The track chain assembly is provided with a guide groove for cooperating with the yarn mesh. The flexible connectors connect several track chain assemblies in series to form a track chain body that can bend and move in a first plane. The track assembly includes a guide rail component and a movable seat. The guide rail component is movably connected to the movable seat, allowing the movable seat to rotate relative to the guide rail component within a second plane. The second plane is perpendicular to the first plane. The movable seat is provided with a mounting part for movable installation on the ground rail bridge.

7. A detachable screen door / window as described in claim 6, characterized in that, The movable seat is provided with a movable cavity, and the guide rail component is provided with a rotating shaft component. The rotating shaft component passes into the movable cavity and rotates with the movable cavity within a preset angle range. The outer circumferential surface of the rotating shaft component is provided with a limiting protrusion, and the side wall of the movable cavity is provided with a limiting groove. The limiting protrusion is movably fitted in the limiting groove in the circumferential direction of the rotating shaft component.

8. A detachable screen door / window as described in claim 7, characterized in that, The limiting groove includes a placement cavity and a limiting cavity distributed circumferentially along the movable cavity. The placement cavity and the limiting cavity are connected and communicate with each other. The movable seat is provided with an installation port that communicates with the placement cavity for the insertion of the rotating shaft component. The limiting protrusion of the rotating shaft component can move between the placement cavity and the limiting cavity by rotation. When the limiting protrusion is in the limiting cavity, it forms a limiting engagement with the movable seat in the axial direction of the rotating shaft component.

9. A detachable screen door / window as described in claim 6, characterized in that, It also includes a ground rail bridge with guide rails. The mounting part includes a second guide groove that is movably engaged with the guide rails. The second guide groove is clearance-fitted with the guide rails so that the movable seat can move relative to the ground rail bridge in a second plane.

10. A detachable screen door / window as described in claim 6, characterized in that, The guide groove two includes a first mating part and a second mating part, which are connected and distributed along the sliding direction on both sides of the groove surface that mate with the guide rail. The first mating part and the second mating part are provided with an included angle. The first mating part and the second mating part are switched to mate with the guide rail by rotating the movable seat. When the movable seat mates with the guide rail through the first mating part, the distance between the mating surfaces of the first mating part and the guide rail is 'a'. When the movable seat mates with the guide rail through the second mating part, the distance between the mating surfaces of the second mating part and the guide rail is 'b'. b is greater than the width of the guide rail to disengage from the guide rail or adjust the relative angle between the guide rail component and the movable seat. Wherein, a is less than b. The first mating part and the second mating part on both sides of the guide groove two are centrally symmetrically arranged.

11. A detachable screen door / window as described in claim 10, characterized in that, The guide rail is a T-shaped guide rail, and the mating part is provided with a slot for engaging with the T-shaped guide rail in the longitudinal direction. The groove surface where the card slot and the guide rail are in longitudinal upper limit engagement is an inclined surface; and / or, the length of the first engagement part engaging with the guide rail in the sliding direction is less than the length of the second engagement part engaging with the guide rail.

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