Special lock for invisible screen window

Abstract

This utility model relates to the field of door and window locks, and more particularly to a special lock for invisible screen windows, including a lock mounting beam. The key feature is that symmetrical snap-fit ​​mounting seats are inserted into the cavities at both ends of the lock mounting beam, with slidable limit snap-fits on the snap-fit ​​mounting seats. A lock operation port is provided on the front surface of the lock mounting beam, and a lock mechanism is provided within the lock operation port. The lock mechanism includes a lock operation plate, a locking device, a snap-fit ​​assembly, a traction rope connecting plate, and a spring. The lock operation plate is installed at the lock operation port, and a traction rope connecting plate is installed on the other side of the lock operation plate away from the lock operation port. This utility model achieves mechanical interlocking between the locking device and the limit snap-fit ​​blocks, requiring the locking device to be rotated to align with the slot before pulling the operation block to unlock, effectively preventing children from accidentally opening the lock. Furthermore, the elastic traction rope simultaneously pulls the limit snap-fits on both sides, combined with the bottom snap-fit ​​buckle, to achieve double-sided linkage locking, effectively improving the connection's firmness.

Description

Technical Field

[0001] This utility model relates to the field of door and window lock technology, and in particular to a lock specifically for invisible screen windows. Background Technology

[0002] Retractable screens are screens with automatically retractable mesh, mainly used for ventilation and mosquito prevention. The frame is tightly attached to the window frame. When in use, the screen is pulled down, and when not in use, the screen automatically retracts into the mesh box, saving space and providing a strong seal. The bottom of the retractable screen is equipped with a locking device for connection.

[0003] Traditional screen window locks are all single-structure locking connections, which are not very secure and lack anti-accidental activation mechanisms, so children may accidentally unlock the screen window. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a special lock for invisible screen windows.

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

[0006] A special lock for invisible screen windows, including a lock mounting beam, is characterized in that snap-fit ​​mounting seats are symmetrically inserted into the two end cavities of the lock mounting beam, and limit snaps are slidably engaged on the snap-fit ​​mounting seats. A lock operation port is opened on the front surface of the lock mounting beam, and a lock mechanism is provided in the lock operation port. The lock mechanism includes a lock operation plate, a locking device, a snap-fit ​​assembly, a traction rope connecting plate, and a spring. The lock operation plate is installed at the lock operation port, and a traction rope connecting plate is installed on the other side of the lock operation plate away from the lock operation port. A snap-fit ​​assembly is slidably arranged between the lock operation plate and the traction rope connecting plate. A snap-fit ​​mounting beam is provided at the bottom of the lock mounting beam.

[0007] In addition, a preferred structure is that the buckle mounting base has a sliding cavity laterally formed, a limit buckle is slidably engaged in the sliding cavity, and a limit slot is formed at the top of the buckle mounting base.

[0008] 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.

[0009] In addition, a preferred structure is that the lock operation plate has a latch operation port, a rotating port is provided on one side of the latch operation port, a rotating cavity is provided on the back of the lock operation plate at the rotating port, a locking device is rotatably provided in the rotating cavity, and a limit slot is provided on the top of the locking device.

[0010] 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.

[0011] 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.

[0012] The locking plate is provided with an operating block, which is movable at the locking operation port. A limit block is provided horizontally at the top of one end of the locking plate, and the limit block can be inserted into the limit slot.

[0013] 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;

[0014] The top of the latch plate is provided with a latch plate mounting part for installation in the latch plate mounting groove, and the bottom of the latch plate is provided with a latch head.

[0015] Furthermore, in a preferred configuration, a mounting groove is provided laterally on the upper surface of the locking mounting beam, and a locking head assembly is provided in the middle of the bottom wall of the mounting groove. The locking head assembly includes a locking mounting plate, which is installed in the middle of the bottom wall of the mounting groove. A locking head is provided on the top of the locking mounting plate, and the locking head is used to lock the locking plate.

[0016] 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

[0017] Figure 1 This is a schematic diagram of the lock after it has been disassembled.

[0018] Figure 2 This is a schematic diagram of the overall structure of the lock.

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the buckle mounting base and the limit buckle.

[0020] Figure 4 This is a schematic diagram of the overall structure of the lock mechanism;

[0021] Figure 5 A schematic diagram of the locking mechanism connecting the limit buckles on both sides via an elastic traction rope;

[0022] Figure 6 This is a schematic diagram of the disassembled lock mechanism.

[0023] Figure 7 This is a schematic diagram of the lock control panel.

[0024] Figure 8 This is a schematic diagram of the structure of the traction rope connecting plate;

[0025] Figure 9 This is a schematic diagram of the disassembled locking assembly;

[0026] Figure 10 A schematic diagram of the structure after separating the lock mounting beam and the latch mounting beam;

[0027] Figure 11 This is a structural schematic diagram of the latch head assembly;

[0028] Figure 12 This is a schematic diagram of the buckle head assembly and buckle plate in the engaged state.

[0029] In the diagram: 1 Lock mechanism, 11 Lock operation plate, 111 Locking operating port, 112 Rotating port, 113 Rotating cavity, 12 Locking device, 121 Limiting slot, 13 Locking assembly, 131 Locking plate, 1311 Operation block, 1312 Limiting insert, 132 Locking plate, 1321 Locking clip, 1322 Locking plate mounting part, 133 Locking 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. Rotary shaft, 143. Traction rope winding disc, 144. Spring placement groove, 15. Spring, 2. Limit buckle, 21. Buckle head, 22. Connecting block, 23. Buckle connecting block, 24. Through hole, 3. Lock mounting beam, 31. Lock operation port, 4. Buckle mounting seat, 41. Sliding cavity, 42. Limit buckle groove, 5. Elastic traction rope, 6. Lock mounting beam, 61. Mounting groove, 62. Lock head assembly, 621. Lock mounting plate, 622. Lock head. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1-9 A special lock for invisible screen windows includes a lock mounting beam 3. symmetrically inserted buckle mounting seats 4 are located at both ends of the lock mounting beam 3. Limiting buckles 2 slide on the buckle mounting seats 4. A lock operation port 31 is provided on the front surface of the lock mounting beam 3. A lock mechanism 1 is provided in the lock operation port 31. The lock mechanism 1 includes a lock operation plate 11, a locking device 12, a buckle 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. A 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 buckle assembly 13 slides between the lock operation plate 11 and the traction rope connecting plate 14. A buckle mounting beam 6 is provided at the bottom of the lock mounting beam 3.

[0032] The buckle mounting base 4 has a horizontally opened sliding cavity 41, and a limit buckle 2 is slidably engaged at the sliding cavity 41. A limit slot 42 is opened at the top of the buckle mounting base 4, and the limit slot 42 is used to connect the mesh.

[0033] In addition, 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. The through holes 24 are used for binding the elastic traction rope 5 and facilitate the pulling of the elastic traction rope 5.

[0034] Furthermore, 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 top of the locking device 12.

[0035] In addition, 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.

[0036] Meanwhile, 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 plug 1312 is provided laterally at the top of one end of the locking plate 131 and can be inserted into the limit slot 121.

[0037] In addition, a protrusion 1332 is provided on one side of the surface of the lock mounting plate 133. The protrusion 1332 is provided to slide laterally at the connection port 141. 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 provided to move in the spring placement groove 144. A lock plate mounting part 1322 for mounting in the lock plate mounting groove 1334 is provided at the top of the lock plate 132. A lock buckle head 1321 is provided at the bottom of the lock plate 132.

[0038] A mounting groove 61 is provided transversely on the upper surface of the mounting beam 6. A locking head assembly 62 is provided in the middle of the bottom wall of the mounting groove 61. The locking head assembly 62 includes a locking mounting plate 621, which is installed in the middle of the bottom wall of the mounting groove 61. A locking head 622 is provided on the top of the locking mounting plate 621, which is used to lock the locking plate 132.

[0039] In this embodiment, when unlocking using the lock mechanism 1, the operator first releases the locking state of the locking device 12, rotates the locking device 12, so that the limiting insert 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 operation port 111, thereby causing the operating block 1311 to move the locking plate 132 laterally, thereby moving the locking head 1321 that is stuck at the bottom of the locking head 622 laterally out. 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 winding disc 143, thereby driving the limiting buckles 2 on both sides to move in the sliding cavity 41 of the buckle mounting seat 4.

[0040] After the limit latches 2 on both sides move, the latch heads 21 on both sides retract and move closer together, releasing the latch heads 21 from the locked state. When the lock mounting plate 133 moves, it will simultaneously drive the spring 15 in the spring placement groove 144 to retract. The spring 15 can easily reset the lock assembly 13 without external pressure, and can 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, causing the lock assembly 13 to be unable to move laterally, thus locking the internal locking device 12. After both the limit latches 2 and the latch heads 1321 are unlocked, the lock mounting beam 3 can be lifted as a whole.

[0041] 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.

[0042] 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 special lock for invisible screen windows, including a lock mounting beam (3), characterized in that, 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). The lock operation port (31) is equipped with a lock mechanism (1). The lock mechanism (1) includes a lock operation plate (11), a locking device (12), a buckle 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 buckle assembly (13) is slidably arranged between the lock operation plate (11) and the traction rope connecting plate (14). The bottom of the lock mounting beam (3) is equipped with a buckle mounting beam (6).

2. The special lock for invisible screen windows according to claim 1, characterized in that, The buckle mounting base (4) has a horizontal sliding cavity (41) with a limit buckle (2) slidingly engaged at the sliding cavity (41) and a limit slot (42) is provided at the top of the buckle mounting base (4).

3. The special lock for invisible screen windows according to claim 1, 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).

4. The special lock for invisible screen windows according to claim 1, characterized in that, 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). A limit slot (121) is provided on the top of the locking device (12).

5. The special lock for invisible screen windows according to claim 1, 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).

6. The special lock for invisible screen windows according to claim 5, 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 at the top of one end of the locking plate (131). The limit plug (1312) can be inserted into the limit slot (121).

7. The special lock for invisible screen windows according to claim 6, 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 top of the latch plate (132) is provided with a latch plate mounting part (1322) for mounting in the latch plate mounting groove (1334), and the bottom of the latch plate (132) is provided with a latch head (1321).

8. The special lock for invisible screen windows according to claim 1, characterized in that, The upper surface of the buckle mounting beam (6) is provided with a horizontal mounting groove (61). A buckle head assembly (62) is provided in the middle of the bottom wall of the mounting groove (61). The buckle head assembly (62) includes a buckle mounting plate (621). The buckle mounting plate (621) is installed in the middle of the bottom wall of the mounting groove (61). A buckle head (622) is provided on the top of the buckle mounting plate (621). The buckle head (622) is used to lock the buckle plate (132).

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