Retractable Invisible Screen

CN224282474UActive Publication Date: 2026-05-26CHANGZHOU YIBO DOOR & WINDOW CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU YIBO DOOR & WINDOW CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing locking structure of invisible screen windows is not very secure and lacks an anti-accidental activation mechanism, which may cause children to accidentally unlock the screen window.

Method used

It adopts a double-sided linkage locking structure, which uses a mechanical interlocking design between the locking device and the limit block, combined with an elastic traction rope and a bottom locking buckle, to achieve stable locking of the mesh and prevent children from accidentally opening it.

Benefits of technology

It effectively prevents children from accidentally operating the screen, improves the connection strength and safety of the screen, and ensures that the screen is reliably fixed in place when needed.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of door and window building materials, and particularly to a retractable invisible screen window, including a supporting side beam. A beam connecting seat is horizontally inserted into the cavity at both ends of the supporting side beam. A transverse support beam is vertically installed on each of the beam connecting seats on both sides. A rewinding unit is provided on the transverse support beam. A locking unit is vertically slidably fitted between the transverse support beams on their inner wall grooves. The locking unit includes a locking mechanism, a limit buckle, a lock mounting beam, and a buckle mounting seat. This utility model achieves mechanical interlocking between the locking device and the limit plug, requiring the locking device to be rotated to align with the slot before pulling the operating block to unlock, effectively preventing children from accidentally opening the screen. Furthermore, an elastic traction rope synchronously pulls the limit buckles on both sides, combined with the bottom locking buckle head, to achieve double-sided linkage locking, effectively improving the connection's firmness.
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Description

Technical Field

[0001] This utility model relates to the field of door and window building materials technology, and in particular to retractable invisible screen windows. Background Technology

[0002] Retractable screens are screens whose mesh can automatically roll back, mainly for ventilation and mosquito prevention. The frame is tightly attached to the window frame. When needed, the mesh is pulled out horizontally, and when not in use, the mesh automatically rolls back into the mesh box, saving space and providing strong sealing. The rolling principle of retractable screens is to store the mesh using a roller.

[0003] Retractable screens typically have latches at the bottom. However, current latches are all single-structure locking connections, which are not very secure and lack accidental activation mechanisms. Children could accidentally unlock the screen. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a retractable invisible screen window.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The retractable retractable screen includes a supporting side beam. A beam connecting seat is horizontally inserted into the cavity at both ends of the supporting side beam. A transverse support beam is vertically installed on each of the beam connecting seats on both sides. A retractable unit is installed on the transverse support beam. A locking unit is vertically slidably fitted between the transverse support beams on their inner wall grooves. The locking unit includes a locking mechanism, a limiting buckle, a locking mounting beam, and a buckle mounting seat.

[0007] The lock mounting beam has symmetrically inserted buckle mounting seats at both ends of the insertion cavity. The buckle mounting seats have sliding limit buckles. The front surface of the lock mounting beam has a lock operation port with a lock mechanism.

[0008] In addition, a preferred structure is that a latch mounting plate is installed in the middle of the upper surface of the support side beam, and a latch head is provided on the latch mounting plate for locking the locking unit.

[0009] The crossbeam connecting seat has a crossbeam locking block on one side for connecting to the supporting crossbeam. The crossbeam connecting seat also has a support beam locking block for installing the transverse support beam. The crossbeam connecting seat has a buckle groove on the block on one side of the support beam locking block. The buckle groove is used to lock the limiting buckle.

[0010] In addition, the preferred structure is that the winding unit includes a wire mesh box, with wire mesh box covers symmetrically installed at both ends of the wire mesh box, the bottom of the wire mesh box covers being installed on a transverse support beam, a return force adjustment accessory being rotatably arranged between the wire mesh box covers on both sides, a spring accessory being provided on the roller of the return force adjustment accessory, an invisible mesh being wound on the wire mesh tube, and a speed reduction box being provided on the wire mesh box cover located on one side.

[0011] The invisible mesh includes a mesh, one end of which is wound around a circular mesh tube, and the other end is woven with a mesh connecting plate, which is used to connect to the lock unit;

[0012] The mesh is symmetrically provided with limiting edge sealing parts on both sides. The limiting edge sealing parts are used to be installed in the transverse support beam. The limiting edge sealing parts include multiple limiting teeth blocks evenly arranged on both sides of the mesh. Hot melt adhesive is provided on both sides of the connection between the mesh and the limiting teeth blocks.

[0013] The transverse support beam is provided with a limiting track in its inner cavity. The limiting track has a mesh limiting part mounting groove for installing the limiting tooth block. The mesh limiting part mounting groove is connected to a limiting slot for abutting the connection between the limiting tooth block and the mesh.

[0014] In addition, a preferred structure is that the buckle mounting base has a sliding cavity opened laterally, a limit buckle is slidably engaged in the sliding cavity, the buckle mounting base is slidably engaged in the sliding groove of the transverse support beam, and a limit groove for locking the mesh connecting plate is opened on the buckle mounting base.

[0015] Furthermore, in a preferred configuration, the limiting buckle includes a buckle connecting block, with a connecting block installed at one end and a buckle head at the other end. The buckle head is used to engage with the buckle slot. Symmetrical transverse through holes are provided on the buckle connecting block for attaching the elastic traction rope.

[0016] In addition, a preferred structure is that the lock mechanism includes a lock operation plate, a locking device, a latch assembly, a traction rope connecting plate, and a spring. The lock operation plate is installed at the lock operation port, and the traction rope connecting plate is installed on the other side of the lock operation plate away from the lock operation port. The latch assembly is slidably arranged between the lock operation plate and the traction rope connecting plate.

[0017] The lock operation plate has a latch operation port, and a rotating port is provided on one side of the latch operation port. A rotating cavity is provided on the back of the rotating port on the lock operation plate. A locking device is rotatably installed in the rotating cavity, and a limit slot is provided on the locking device.

[0018] Furthermore, in a preferred configuration, the traction rope connecting plate has a connection port, and a rotating shaft is provided on the side surface of the traction rope connecting plate away from the lock operating plate. A traction rope winding disc is rotatably mounted on the rotating shaft, and an elastic traction rope connecting the two end limit buckles is wound on the traction rope winding disc. A spring placement groove is provided on the surface of the traction rope connecting plate located on the side of the connection port facing the lock operating plate, and a spring is provided in the spring placement groove. The spring is used for the lock assembly to reset.

[0019] Furthermore, in a preferred configuration, the locking assembly includes a locking plate, a locking plate, and a lock mounting plate. The locking plate is connected to and installed on the lock mounting plate, and the locking plate is vertically installed between the locking plate and the lock mounting plate. The locking plate is positioned to move laterally at the lock operating plate, and the lock mounting plate is positioned to move at the traction rope connecting plate.

[0020] The locking plate is provided with an operating block, which is movable at the locking operation port. A limit block is provided horizontally on one end of the locking plate, and the limit block can be inserted into the limit slot.

[0021] In addition, a preferred structure is that a protrusion is provided on one side of the surface of the lock mounting plate, the protrusion is provided to slide laterally at the connection port, a traction rope fixing groove is provided on one side of the protrusion, the traction rope fixing groove is used to fix the elastic traction rope that pulls the limit buckles at both ends, a lock mounting plate mounting groove for installing the lock plate is opened in the middle of the lock mounting plate, and a spring pressure plate is provided at the other end of the protrusion away from the traction rope fixing groove, the spring pressure plate is provided to move at the spring placement groove;

[0022] The buckle plate is provided with a buckle plate mounting part for installation in the buckle plate mounting groove, and a buckle clip head is provided at the bottom of the buckle plate for locking the buckle head.

[0023] The beneficial effects of this utility model are as follows: This utility model achieves mechanical interlocking between the locking device and the limiting plug, so that when unlocking, the locking device must be rotated to align with the slot first, and then the operating block is pulled, which effectively prevents children from accidentally opening it. In addition, the elastic traction rope simultaneously pulls the limiting buckles on both sides, and combined with the bottom locking buckle head, it achieves double-sided linkage locking, which effectively improves the firmness of the connection. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a retractable screen window installed horizontally.

[0025] Figure 2 This is a structural diagram of the back of the invisible screen window;

[0026] Figure 3 A schematic diagram of the structure after the side crossbeams, transverse support beams, and winding unit have been separated;

[0027] Figure 4This is a schematic diagram of the structure after the beam connector is separated from the supporting beam and the transverse support beam.

[0028] Figure 5 This is a partially enlarged structural diagram of the middle section of the supporting side beam;

[0029] Figure 6 This is a schematic diagram of the structure of the wire mesh cage and its cover after disassembly.

[0030] Figure 7 This is a schematic diagram of the structure after the winding unit has been disassembled;

[0031] Figure 8 This is a schematic diagram of the disassembled lock unit.

[0032] Figure 9 This is a schematic diagram of the disassembled structure of the buckle mounting base and the limit buckle.

[0033] Figure 10 This is a schematic diagram of the overall structure of the lock mechanism;

[0034] Figure 11 A schematic diagram of the locking mechanism connecting the limit buckles on both sides via an elastic traction rope;

[0035] Figure 12 This is a schematic diagram of the disassembled lock mechanism.

[0036] Figure 13 This is a schematic diagram of the lock control panel.

[0037] Figure 14 This is a schematic diagram of the structure of the traction rope connecting plate;

[0038] Figure 15 This is a schematic diagram of the disassembled locking assembly;

[0039] Figure 16 A schematic diagram of a structure in which the limiting edge sealing part is installed inside a transverse support beam;

[0040] Figure 17 This is a schematic diagram of the structure after the limiting edge sealing part has been disassembled.

[0041] In the diagram: 01 Supporting side beam, 011 Locking plate, 012 Locking head, 02 Horizontal support beam, 021 Limiting track, 0211 Limiting slot, 0212 Mesh limiting mounting groove, 03 Rewinding unit, 031 Mesh box, 032 Mesh box cover, 033 Spring accessories, 034 Return adjustment accessories, 035 Mesh rolling tube, 036 Gearbox, 04 Locking unit, 05 Invisible screen, 051 Mesh, 052 Mesh connecting plate, 053 Limiting edge sealing, 0531 Limiting tooth block, 0532 Hot melt adhesive edge sealing, 06 Crossbeam connecting seat, 061 Crossbeam locking block, 062 Support beam locking block, 063 Locking slot, 1 Locking mechanism, 11 Locking operation plate, 111 Locking operation port, 112 Rotating port, 113 Rotating cavity, 12 locking device, 121 limiting slot, 13 locking assembly, 131 locking plate, 1311 operating block, 1312 limiting insert block, 132 locking plate, 1321 locking clip head, 1322 locking plate mounting part, 133 lock mounting plate, 1331 traction rope fixing groove, 1332 protrusion, 1333 spring pressure plate, 1334 locking plate mounting groove, 14 traction rope connecting plate, 141 connecting port, 142 rotating shaft, 143 traction rope winding disc, 144 spring placement groove, 15 spring, 2 limiting buckle, 21 buckle head, 22 connecting block, 23 buckle connecting block, 24 through hole, 3 lock mounting beam, 31 lock operating port, 4 buckle mounting seat, 41 sliding cavity, 42 limiting slot, 5 elastic traction rope. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0043] Reference Figure 1-17 The retractable retractable screen includes a support side beam 01. A beam connecting seat 06 is horizontally inserted into the cavity at both ends of the support side beam 01. A transverse support beam 02 is vertically installed on each of the beam connecting seats 06 on both sides. A rewinding unit 03 is installed on the transverse support beam 02. A locking unit 04 is vertically slidably fitted between the transverse support beams 02 on their inner wall grooves. The locking unit 04 includes a locking mechanism 1, a limiting buckle 2, a locking mounting beam 3, and a buckle mounting seat 4. Buckle mounting seats 4 are symmetrically inserted into the cavity at both ends of the locking mounting beam 3. A limiting buckle 2 slides on the buckle mounting seat 4. A locking operation port 31 is opened on the front surface of the locking mounting beam 3. The locking mechanism 1 is installed in the locking operation port 31, which facilitates the release of the locked state.

[0044] Meanwhile, a latch mounting plate 011 is installed in the middle of the upper surface of the support side crossbeam 01. A latch head 012 is provided on the latch mounting plate 011. The latch head 012 is used to lock the lock unit 04. A crossbeam locking block 061 for connecting to the support side crossbeam 01 is provided on one side of the crossbeam connecting seat 06. A support beam locking block 062 for installing the transverse support beam 02 is vertically provided on the crossbeam connecting seat 06. A latching groove 063 is opened on the block on the side of the support beam locking block 062 on the crossbeam connecting seat 06. The latching groove 063 is used to lock the limit latch 2.

[0045] The winding unit 03 includes a wire mesh box 031, with wire mesh box covers 032 symmetrically installed at both ends of the wire mesh box 031. The bottom of the wire mesh box covers 032 is installed on the transverse support beam 02. A return force adjustment accessory 034 is rotatably arranged between the wire mesh box covers 032 on both sides. A spring accessory 033 is provided on the roller of the return force adjustment accessory 034. An invisible mesh 05 is wound on the wire mesh tube 035. A reduction gearbox 036 is provided on the wire mesh cover 032 on one side. The invisible mesh 05 includes a mesh 051. One end of the mesh 051 is wound on the wire mesh tube 035, and the other end is woven and connected to a mesh connecting plate 052. The mesh connecting plate 052 is used to connect to the lock unit 04.

[0046] Furthermore, symmetrical limiting sealing portions 053 are provided on both sides of the mesh 051. The limiting sealing portions 053 are used for installation inside the transverse support beam 02. The limiting sealing portions 053 include multiple limiting teeth 0531 evenly arranged on both sides of the mesh 051. Hot melt adhesive sealing 0532 is provided on both sides of the connection between the mesh 051 and the limiting teeth 0531. A limiting track 021 is provided inside the transverse support beam 021, and a mesh for installing the limiting teeth 0531 is opened in the limiting track 021. The limiting part mounting groove 0212 is provided with a limiting slot 0211 for abutting the limiting tooth block 0531 at the connection between the mesh 051 and the limiting part mounting groove 0212. Multiple limiting teeth blocks 0531 with a width wider than the mesh 051 are provided on both sides of the mesh 051, and the connection between them and the mesh 051 is ensured by hot melt adhesive sealing 0532. At the same time, the limiting track 021 is provided to easily lock the limiting sealing part 053, thereby achieving better stability of the movement trajectory when the mesh 051 is rolled up and pulled out.

[0047] In addition, a sliding cavity 41 is provided horizontally on the buckle mounting base 4, and a limiting buckle 2 is slidably engaged at the sliding cavity 41. The buckle mounting base 4 is slidably engaged on the sliding groove of the horizontal support beam 02, and a limiting groove 42 is provided on the buckle mounting base 4 to lock the mesh connecting plate 052.

[0048] Meanwhile, the limiting buckle 2 includes a buckle connecting block 23. One end of the buckle connecting block 23 is equipped with a connecting block 22, and the other end is provided with a buckle head 21. The buckle head 21 is used to snap into the buckle slot 063. The buckle connecting block 23 has symmetrical horizontal through holes 24 for binding the elastic traction rope 5.

[0049] Furthermore, the lock mechanism 1 includes a lock operation plate 11, a locking device 12, a latch assembly 13, a traction rope connecting plate 14, and a spring 15. The lock operation plate 11 is installed at the lock operation port 31. The traction rope connecting plate 14 is installed on the other side of the lock operation plate 11 away from the lock operation port 31. The latch assembly 13 is slidably arranged between the lock operation plate 11 and the traction rope connecting plate 14. The lock operation plate 11 has a latch operation port 111. A rotating port 112 is opened on one side of the latch operation port 111. A rotating cavity 113 is provided on the back of the lock operation plate 11 located at the rotating port 112. The locking device 12 is rotatably arranged at the rotating cavity 113. A limit slot 121 is provided on the locking device 12. The locking device 12 serves to prevent accidental activation.

[0050] Meanwhile, a connection port 141 is provided on the traction rope connecting plate 14. A rotating shaft 142 is provided on the side surface of the traction rope connecting plate 14 away from the lock operating plate 11. A traction rope winding disc 143 is rotatably provided on the rotating shaft 142. An elastic traction rope 5 connecting the two end limit buckles 2 is wound on the traction rope winding disc 143. A spring placement groove 144 is provided on the surface of the traction rope connecting plate 14 on the side of the connection port 141 facing the lock operating plate 11. A spring 15 is provided in the spring placement groove 144. The spring 15 is used for the lock assembly 13 to reset.

[0051] In addition, the latch assembly 13 includes a locking plate 131, a latch plate 132, and a lock mounting plate 133. The locking plate 131 is connected and installed with the lock mounting plate 133, and the latch plate 132 is vertically installed between the locking plate 131 and the lock mounting plate 133. The locking plate 131 is positioned at the lock operating plate 11 and moves laterally. The lock mounting plate 133 is positioned at the traction rope connecting plate 14 and moves. An operating block 1311 is provided on the locking plate 131 and moves at the latch operating port 111. A limit block 1312 is provided laterally on one end of the locking plate 131 and can be inserted into the limit slot 121.

[0052] Among them, a protrusion 1332 is provided on one side of the surface of the lock mounting plate 133. The protrusion 1332 is set at the connection port 141 and slides laterally. A traction rope fixing groove 1331 is provided on one side of the protrusion 1332. The traction rope fixing groove 1331 is used to fix the elastic traction rope 5 that pulls the two end limit buckles 2. A lock plate mounting groove 1334 for mounting the lock plate 132 is opened in the middle of the lock mounting plate 133. A spring pressure plate 1333 is provided at the other end of the protrusion 1332 away from the traction rope fixing groove 1331. The spring pressure plate 1333 is set at the spring placement groove 144 and moves. A lock plate mounting part 1322 is provided on the lock plate 132 for mounting in the lock plate mounting groove 1334. A lock buckle head 1321 is provided at the bottom of the lock plate 132 for locking the lock head 012.

[0053] In this embodiment, when the invisible screen 05 of the invisible screen window is rolled up, the screen 051 is automatically rolled up by the rolling tube 035 in conjunction with the spring accessory 033 and the return adjustment accessory 034. The invisible screen window adopts the automatic rolling working principle of the roller screen window. Automatic rolling is well known to those skilled in the art, so there is no need to elaborate further.

[0054] The lock unit 04 of this utility model can fix the state of the screen 051 after the screen 051 is pulled out laterally, lock the lock mounting beam 3 at the bottom, and the lock mechanism 1 is located indoors.

[0055] When using the lock mechanism 1 to unlock, the operator first releases the locking state of the locking device 12, rotates the locking device 12, so that the limiting block 1312 can move into the limiting slot 121, thereby ensuring that the entire locking assembly 13 can move. The operator pulls the operating block 1311 through the locking operating port 111, thereby causing the operating block 1311 to move the locking plate 132 laterally, thereby moving the locking head 1321, which was originally stuck at the locking head 012, out laterally. At the same time as the operating block 1311 moves laterally, it will drive the movement of the traction rope fixing groove 1331. The traction rope fixing groove 1331 pulls the elastic traction rope 5 wound on the traction rope reel 143, thereby causing the limiting buckles 2 on both sides to move in the sliding cavity 41 of the buckle mounting seat 4.

[0056] After the limit buckles 2 on both sides move, the buckle heads 21 on both sides retract and move closer together. The buckle heads 21 disengage from the buckle slots 063. When the lock mounting plate 133 moves, it will simultaneously drive the spring 15 in the spring placement slot 144 to retract. The spring 15 can easily reset the lock assembly 13 without external pressure. It can also be locked by the locking device 12. The operating block 1311 cannot be moved. By rotating the locking device 12, when the limit slot 121 is not aligned with the limit insert 1312, the limit insert 1312 cannot be inserted into the limit slot 121, so that the entire lock assembly 13 cannot move laterally. The internal locking device 12 is locked. After the limit buckles 2 and the buckle heads 1321 are unlocked, the entire lock mounting beam 3 can be moved to roll up the mesh 051.

[0057] In this utility model, the locking device 12 and the limiting plug 1312 are mechanically interlocked, so that when unlocking, the locking device 12 must be rotated to align with the slot first, and then the operating block 1311 is pulled, which effectively prevents children from accidentally opening it. In addition, the elastic traction rope 5 pulls the limiting buckles 2 on both sides at the same time, and combined with the bottom locking buckle head 1321, the double-sided linkage locking is realized, which effectively improves the firmness of the connection.

[0058] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A retractable retractable screen window, including a supporting side crossbeam (01), characterized in that, The two ends of the support beam (01) are horizontally inserted with beam connecting seats (06), and the beam connecting seats (06) on both sides are vertically installed with transverse support beams (02). The transverse support beams (02) are provided with winding units (03). The transverse support beams (02) on both sides are vertically slidably fitted with lock units (04) on their inner wall grooves. The lock unit (04) includes a lock mechanism (1), a limit buckle (2), a lock mounting beam (3), and a buckle mounting seat (4). The lock mounting beam (3) has symmetrically inserted buckle mounting seats (4) at both ends of the insertion cavity. The buckle mounting seats (4) are slidably fitted with limit buckles (2). The front surface of the lock mounting beam (3) has a lock operation port (31) and a lock mechanism (1) is provided in the lock operation port (31).

2. The retractable invisible screen window according to claim 1, characterized in that, A latch mounting plate (011) is installed in the middle of the upper surface of the support side beam (01), and a latch head (012) is provided on the latch mounting plate (011). The latch head (012) is used to lock the lock unit (04). The beam connecting seat (06) is provided with a beam locking block (061) on one side for connecting to the supporting beam (01). The beam connecting seat (06) is provided with a support beam locking block (062) for installing the transverse support beam (02). The beam connecting seat (06) is provided with a buckle groove (063) on the block located on one side of the support beam locking block (062). The buckle groove (063) is used to lock the limiting buckle (2).

3. The retractable invisible screen window according to claim 1, characterized in that, The winding unit (03) includes a wire mesh box (031), with wire mesh box covers (032) symmetrically installed at both ends of the wire mesh box (031). The bottom of the wire mesh box cover (032) is installed on the transverse support beam (02). A return force adjustment accessory (034) is rotatably arranged between the wire mesh box covers (032) on both sides. A spring accessory (033) is provided on the roller of the return force adjustment accessory (034), and an invisible mesh (05) is wound on the wire mesh tube (035). A speed reduction box (036) is provided on the wire mesh box cover (032) on one side. The invisible mesh (05) includes a mesh (051), one end of which is wound around a circular mesh tube (035), and the other end is woven with a mesh connecting plate (052), which is used to connect to the lock unit (04); The mesh (051) is symmetrically provided with limiting edge sealing parts (053) on both sides. The limiting edge sealing parts (053) are used to be installed in the transverse support beam (02). The limiting edge sealing parts (053) include multiple limiting teeth (0531) evenly arranged on both sides of the mesh (051). Hot melt adhesive sealing (0532) is provided on both sides of the connection between the mesh (051) and the limiting teeth (0531). The transverse support beam (02) is provided with a limiting track (021) in its inner cavity. The limiting track (021) is provided with a mesh limiting part mounting groove (0212) for installing the limiting tooth block (0531). The mesh limiting part mounting groove (0212) is connected to a limiting slot (0211) for abutting the connection between the limiting tooth block (0531) and the mesh (051).

4. The retractable invisible screen window according to claim 3, characterized in that, The buckle mounting base (4) has a sliding cavity (41) opened laterally, and a limit buckle (2) is slidably engaged at the sliding cavity (41). The buckle mounting base (4) is slidably engaged on the groove of the transverse support beam (02). The buckle mounting base (4) has a limit groove (42) for locking the mesh connecting plate (052).

5. The retractable invisible screen window according to claim 4, characterized in that, The limiting buckle (2) includes a buckle connecting block (23). One end of the buckle connecting block (23) is equipped with a connecting block (22), and the other end is provided with a buckle head (21). The buckle head (21) is used to snap into the buckle slot (063). The buckle connecting block (23) is symmetrically and transversely provided with through holes (24), which are used for binding the elastic traction rope (5).

6. The retractable invisible screen window according to claim 1, characterized in that, The lock mechanism (1) includes a lock operation plate (11), a locking device (12), a locking assembly (13), a traction rope connecting plate (14), and a spring (15). The lock operation plate (11) is installed at the lock operation port (31). The traction rope connecting plate (14) is installed on the other side of the lock operation plate (11) away from the lock operation port (31). The locking assembly (13) is slidably arranged between the lock operation plate (11) and the traction rope connecting plate (14). The lock operation plate (11) is provided with a latch operation port (111), and a rotating port (112) is provided on one side of the latch operation port (111). A rotating cavity (113) is provided on the back of the rotating port (112) of the lock operation plate (11). A locking device (12) is rotatably provided at the rotating cavity (113), and a limit slot (121) is provided on the locking device (12).

7. The retractable invisible screen window according to claim 6, characterized in that, The traction rope connecting plate (14) has a connection port (141). A rotating shaft (142) is provided on the side of the traction rope connecting plate (14) away from the lock operating plate (11). A traction rope winding disc (143) is rotatably provided on the rotating shaft (142). An elastic traction rope (5) connecting the two end limit buckles (2) is wound on the traction rope winding disc (143). A spring placement groove (144) is provided on the surface of the traction rope connecting plate (144) on the side of the connection port (141) facing the lock operating plate (11). A spring (15) is provided in the spring placement groove (144). The spring (15) is used to reset the lock assembly (13).

8. The retractable invisible screen window according to claim 7, characterized in that, The locking assembly (13) includes a locking plate (131), a locking plate (132), and a lock mounting plate (133). The locking plate (131) is connected to the lock mounting plate (133), and the locking plate (132) is vertically installed between the locking plate (131) and the lock mounting plate (133). The locking plate (131) is positioned at the lock operation plate (11) and can move laterally. The lock mounting plate (133) is positioned at the traction rope connecting plate (14) and can move. An operating block (1311) is provided on the locking plate (131). The operating block (1311) is located at the locking operation port (111) and a limit plug (1312) is provided horizontally on one end of the locking plate (131). The limit plug (1312) can be inserted into the limit slot (121).

9. The retractable invisible screen window according to claim 8, characterized in that, A protrusion (1332) is provided on one side of the surface of the lock mounting plate (133). The protrusion (1332) is set at the connection port (141) and slides laterally. A traction rope fixing groove (1331) is provided on one side of the protrusion (1332). The traction rope fixing groove (1331) is used to fix the elastic traction rope (5) that pulls the two end limit buckles (2). A lock plate mounting groove (1334) for installing the lock plate (132) is opened in the middle of the lock mounting plate (133). A spring pressure plate (1333) is provided at the other end of the protrusion (1332) away from the traction rope fixing groove (1331). The spring pressure plate (1333) is set at the spring placement groove (144) and moves. The latch plate (132) is provided with a latch plate mounting part (1322) for mounting in the latch plate mounting groove (1334), and a latch head (1321) is provided at the bottom of the latch plate (132) for locking the latch head (012).