Special lock for invisible screen door

Abstract

The utility model relates to the field of door and window lock, especially invisible screen door special lock, including lock installation crossbeam, the both ends of lock installation crossbeam symmetry are inserted into the cavity and are inserted with the buckle mounting seat, the buckle mounting seat is slidably matched with the limit buckle, the lock installation crossbeam front and back surface symmetry is set up and has the lock operation mouth, the lock operation mouth of both sides is provided with first lock mechanism, second lock mechanism respectively, first lock mechanism and second lock mechanism connection and installation are set up in the inside of lock installation crossbeam, the utility model through setting first lock mechanism and second lock mechanism realize the indoor and outdoor double operating system of invisible screen door, support indoor and outdoor flexible unlocking, and the lock tight device that sets up can prevent external forced opening, effectively improve security, the elastic traction rope synchronous traction both sides limit buckle that setting adds the lock catch head of bottom, effectively improve the horizontal locking of screen door bottom, improve locking strength.

Description

Technical Field

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

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

[0003] Traditional invisible screen door locks only support unlocking from one side inside the room, and cannot be opened in an emergency from the outside. This means that they cannot be unlocked from both sides at the same time. In addition, the structure of a single latch is not very sturdy, and the latch is prone to aging and falling off after long-term use. 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 doors.

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

[0006] A special lock for concealed screen doors includes a lock mounting beam. symmetrical latch mounting seats are inserted into the cavities at both ends of the lock mounting beam. Limiting latches slide on the latch mounting seats. Lock operation ports are symmetrically opened on the front and rear surfaces of the lock mounting beam. A first lock mechanism and a second lock mechanism are respectively installed in the lock operation ports on both sides. The first and second lock mechanisms are connected and installed together inside the lock mounting beam. A latch mounting beam is provided at the bottom of the lock mounting beam.

[0007] Furthermore, in a preferred configuration, the buckle mounting base has a horizontally opening sliding cavity, where a limit buckle is slidably engaged.

[0008] In addition, a preferred structure is that the limiting buckle includes a buckle connecting block, one end of which is equipped with a connecting block and the other end is provided with a buckle head. Symmetrical transverse through holes are provided on the buckle connecting block for binding the elastic traction rope.

[0009] Furthermore, in a preferred configuration, the first lock mechanism includes a first lock operating plate, a locking device, a latch assembly, a traction rope connecting plate, and a spring. The first lock operating plate is installed at the lock operating port, and the traction rope connecting plate is installed on the other side of the first lock operating plate away from the lock operating port. The latch assembly is slidably disposed between the first lock operating plate and the traction rope connecting plate.

[0010] In addition, a preferred structure is that the first 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 first lock operation plate located 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.

[0011] 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 first 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 and facing the first lock operating plate. A spring is provided in the spring placement groove, and the spring is used for the lock assembly to reset.

[0012] In addition, a preferred structure is that the locking assembly includes a locking plate, a locking plate, and a second lock linkage plate. The locking plate and the second lock linkage plate are connected and installed together, and the locking plate is vertically installed between the locking plate and the second lock linkage plate. The locking plate is set to move laterally at the first lock operation plate, and the second lock linkage plate is set to move at the traction rope connection plate.

[0013] 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.

[0014] Furthermore, in a preferred configuration, a second lock push block is provided on the surface of the second lock linkage plate near the second lock mechanism. The second lock push block is provided to slide laterally at the connection port. A traction rope fixing groove is provided on one side of the second lock push block. The traction rope fixing groove is used to fix the elastic traction rope that holds the limit buckles at both ends. A buck plate mounting groove for mounting the buck plate is provided in the middle of the second lock linkage plate. A spring pressure plate is provided at the other end of the second lock push block facing the second lock mechanism and away from the traction rope fixing groove. The spring pressure plate is provided to move in the spring placement groove.

[0015] 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.

[0016] Furthermore, in a preferred configuration, the second lock mechanism includes a second lock operation plate, a second lock cover plate, and a first lock linkage plate. The second lock operation plate is located at the lock operation port on the other side away from where the first lock operation plate is located. The second lock cover plate is installed on the surface of the second lock operation plate facing the first lock operation plate. The first lock linkage plate is laterally slidably engaged between the second lock operation plate and the second lock cover plate.

[0017] The second operating plate has a toggle opening, the second lock cover plate has a sliding block opening, a sliding block is provided on one side surface of the first lock linkage plate, the sliding block is located in the sliding block opening to push the second lock push block, and a toggle block is provided on the other side surface of the first lock linkage plate away from the sliding block, the toggle block is located in the toggle opening and slides.

[0018] 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.

[0019] The beneficial effects of this utility model are as follows: This utility model realizes the indoor and outdoor dual operating system of the invisible screen door through the first lock mechanism and the second lock mechanism, supports flexible unlocking from the indoor and outdoor sides, and the locking device can prevent forced opening from the outside, effectively improving security. At the same time, the elastic traction rope synchronously pulls the limit buckles on both sides to achieve horizontal locking. In addition, the bottom buckle head effectively improves the horizontal locking of the bottom of the screen door and increases the locking strength. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a lock for screen doors;

[0021] Figure 2 This is a schematic diagram of the disassembled lock mechanism;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the buckle mounting base and the limit buckle.

[0023] Figure 4 This is a schematic diagram of the limit buckle structure;

[0024] Figure 5 This is a structural diagram of the snap-fit ​​mounting base;

[0025] Figure 6 This is a schematic diagram of the structure after the first locking mechanism and the second locking mechanism are separated.

[0026] Figure 7 This is a schematic diagram of the disassembled second locking mechanism;

[0027] Figure 8 This is a schematic diagram of the structure of the first lock linkage plate;

[0028] Figure 9 This is a schematic diagram of the structure of the second lock operation panel;

[0029] Figure 10 A schematic diagram of the first locking mechanism connecting the limit buckles on both sides via an elastic traction rope;

[0030] Figure 11 This is a schematic diagram of the disassembled first lock mechanism;

[0031] Figure 12 This is a schematic diagram of the structure of the first lock operation panel;

[0032] Figure 13 This is a schematic diagram of the structure of the traction rope connecting plate;

[0033] Figure 14 This is a schematic diagram of the disassembled locking assembly;

[0034] Figure 15 A schematic diagram of the structure after separating the lock mounting beam and the latch mounting beam;

[0035] Figure 16 This is a structural schematic diagram of the latch head assembly;

[0036] Figure 17 This is a schematic diagram of the buckle head assembly and buckle plate in the engaged state.

[0037] In the figure: 1 First lock mechanism, 11 First lock 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 Operation block, 1312 Limiting insert, 132 Locking plate, 1321 Locking clip, 1322 Locking plate mounting part, 133 Second lock linkage plate, 1331 Traction rope fixing groove, 1332 Second lock push block, 1333 Spring pressure plate, 1334 Locking plate mounting groove, 14 Traction rope connecting plate, 141 Connecting port, 142 Rotating shaft, 14 3. Traction rope reel, 144. Spring placement groove, 15. Spring, 2. Second lock mechanism, 21. Second lock operation plate, 211. Actuating port, 22. Second lock cover plate, 221. Sliding block movable port, 23. First lock linkage plate, 231. Sliding block, 232. Actuating block, 3. Lock mounting beam, 31. Lock operation port, 4. Buckle mounting seat, 41. Sliding cavity, 5. Limit buckle, 51. Buckle head, 52. Connecting block, 53. Buckle connecting block, 54. Through hole, 6. Elastic traction rope, 7. Lock mounting beam, 71. Mounting groove, 72. Lock head assembly, 721. Lock mounting plate, 722. Lock head. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1-14The lock for concealed screen doors includes a lock mounting beam 3. A latch mounting seat 4 is symmetrically inserted into the end cavities of the lock mounting beam 3. A limit latch 5 slides on the latch mounting seat 4. Lock operation ports 31 are symmetrically opened on the front and rear surfaces of the lock mounting beam 3. A first lock mechanism 1 and a second lock mechanism 2 are respectively provided in the lock operation ports 31 on both sides. The first lock mechanism 1 and the second lock mechanism 2 are connected and installed together inside the lock mounting beam 3. A latch mounting beam 7 is provided at the bottom of the lock mounting beam 3.

[0040] The buckle mounting base 4 has a horizontally opened sliding cavity 41, and the sliding cavity 41 is slidably fitted with a limit buckle 5, which facilitates the lateral movement of the limit buckle 5.

[0041] In addition, the limiting buckle 5 includes a buckle connecting block 53, one end of which is equipped with a connecting block 52 and the other end is provided with a buckle head 51. A through hole 54 is symmetrically and transversely opened on the buckle connecting block 53, and the through hole 54 is used for binding the elastic traction rope 6.

[0042] Meanwhile, the first lock mechanism 1 includes a first lock operation plate 11, a locking device 12, a locking assembly 13, a traction rope connecting plate 14, and a spring 15. The first 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 first lock operation plate 11 away from the lock operation port 31. The locking assembly 13 is slidably arranged between the first lock operation plate 11 and the traction rope connecting plate 14. The locking assembly 13 is used to play a connecting role.

[0043] In addition, the first 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 first 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. The locking device 12 is used to perform internal locking.

[0044] Furthermore, the traction rope connecting plate 14 has a connection port 141. A rotating shaft 142 is provided on the side surface of the traction rope connecting plate 14 away from the first lock operating plate 11. A traction rope winding disc 143 is rotatably mounted on the rotating shaft 142. An elastic traction rope 6 connecting the two end limit buckles 5 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 first 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.

[0045] Meanwhile, the locking assembly 13 includes a locking plate 131, a locking plate 132, and a second lock linkage plate 133. The locking plate 131 is connected and installed with the second lock linkage plate 133, and the locking plate 132 is vertically installed between the locking plate 131 and the second lock linkage plate 133. The locking plate 131 is positioned at the first lock operation plate 11 and moves laterally. The second lock linkage plate 133 is positioned at the traction rope connecting plate 14 and moves. An operation block 1311 is provided on the locking plate 131 and moves at the lock operation 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.

[0046] In addition, a second lock push block 1332 is provided on the surface of the second lock linkage plate 133 near the second lock mechanism 2. The second lock push block 1332 is provided to slide laterally at the connection port 141. A traction rope fixing groove 1331 is provided on one side of the second lock push block 1332. The traction rope fixing groove 1331 is used to fix the elastic traction rope 6 that pulls the limit buckles 5 at both ends. A lock plate mounting groove 1334 for mounting the lock plate 132 is opened in the middle of the second lock linkage plate 133. A spring pressure plate 1333 is provided at the other end of the second lock push block 1332 facing the second lock mechanism 2 and away from the traction rope fixing groove 1331. The spring pressure plate 1333 is movable at the spring placement groove 144. A lock plate mounting part 1322 for mounting in the lock plate mounting groove 1334 is provided on the top of the lock plate 132. A lock buckle head 1321 is provided on the bottom of the lock plate 132.

[0047] Furthermore, the second locking mechanism 2 includes a second locking operation plate 21, a second locking cover plate 22, and a first locking linkage plate 23. The second locking operation plate 21 is located at the locking operation port 31 on the other side away from where the first locking operation plate 11 is located. The second locking cover plate 22 is installed on the surface of the second locking operation plate 21 facing the first locking operation plate 11. The first locking linkage plate 23 is laterally slidably engaged between the second locking operation plate 21 and the second locking cover plate 22. The second operation plate 21 has a toggle port 211, and the second locking cover plate 22 has a sliding block movement port 221. A sliding block 231 is provided on one side surface of the first locking linkage plate 23. The sliding block 231 is located in the sliding block movement port 221 and is used to push the second locking push block 1332. A toggle block 232 is provided on the other side surface of the first locking linkage plate 23 away from the sliding block 231. The toggle block 232 is located in the toggle port 211 and slides.

[0048] Furthermore, a mounting groove 71 is provided laterally on the upper surface of the locking mounting beam 7, and a locking head assembly 72 is provided in the middle of the bottom wall of the mounting groove 71. The locking head assembly 72 includes a locking mounting plate 721, which is installed in the middle of the bottom wall of the mounting groove 71. A locking head 722 is provided on the top of the locking mounting plate 721, and the locking head 722 is used to lock the locking plate 132.

[0049] In this embodiment, the first locking mechanism 1 is located indoors, while the second locking mechanism 2 is located outdoors. The first locking mechanism 1 indoors has a locking function, which makes it impossible to unlock from the outside through the second locking mechanism 2 under special circumstances.

[0050] When using the first locking 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 that was originally stuck in the locking head 722 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 6 wound on the traction rope reel 143, thereby driving the limiting buckles 5 on both sides to move in the sliding cavity 41 of the buckle mounting seat 4.

[0051] After the limit buckles 5 on both sides move, the buckle heads 51 on both sides retract and move closer to each other. The buckle heads 51 disengage from the structure that is locked at the bottom. When the second locking linkage 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 locking assembly 13 without external pressure. At the same time, when the second lock push block 1332 resets, it will drive the sliding block 231 on the other side to move.

[0052] Furthermore, when unlocking via the second lock mechanism 2 on the other side, the sliding block 232 also drives the sliding block 231 to push the second lock push block 1332 to move, so that the sliding block 232 can also drive the entire lock assembly 13 to move and unlock.

[0053] However, when the locking device 12 is rotated so that the limiting slot 121 is not aligned with the limiting block 1312, the limiting block 1312 cannot be inserted into the limiting slot 121, causing the entire locking assembly 13 to be unable to move laterally. This means that after the internal locking device 12 is locked, it cannot be unlocked by the external lever 232. After both the limiting buckle 5 and the locking buckle head 1321 are unlocked, the entire lock mounting beam 3 can be lifted.

[0054] In this utility model, the indoor and outdoor dual operating system of the invisible screen door is realized by setting the first locking mechanism 1 and the second locking mechanism 2, which supports flexible unlocking from the indoor and outdoor sides. The locking device 12 can prevent forced opening from the outside, effectively improving security. At the same time, the elastic traction rope 6 synchronously pulls the limit buckles 5 on both sides to achieve horizontal locking. In addition, the bottom buckle head 1321 effectively improves the horizontal locking of the bottom of the screen door and increases the locking strength.

[0055] 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 concealed screen doors, 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 (5). The front and rear surfaces of the lock mounting beam (3) are symmetrically provided with lock operation ports (31). The lock operation ports (31) on both sides are respectively provided with a first lock mechanism (1) and a second lock mechanism (2). The first lock mechanism (1) and the second lock mechanism (2) are connected and installed together inside the lock mounting beam (3). The bottom of the lock mounting beam (3) is provided with a buckle mounting beam (7).

2. The special lock for concealed screen doors according to claim 1, characterized in that, The buckle mounting base (4) has a horizontally opened sliding cavity (41), and a limit buckle (5) is slidably engaged at the sliding cavity (41).

3. The special lock for concealed screen doors according to claim 2, characterized in that, The limiting buckle (5) includes a buckle connecting block (53), with a connecting block (52) installed at one end and a buckle head (51) at the other end. A through hole (54) is symmetrically and transversely opened on the buckle connecting block (53), and the through hole (54) is used for binding the elastic traction rope (6).

4. The special lock for concealed screen doors according to claim 1, characterized in that, The first lock mechanism (1) includes a first lock operation plate (11), a locking device (12), a locking assembly (13), a traction rope connecting plate (14), and a spring (15). The first 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 first lock operation plate (11) away from the lock operation port (31). The locking assembly (13) is slidably arranged between the first lock operation plate (11) and the traction rope connecting plate (14).

5. The special lock for concealed screen doors according to claim 4, characterized in that, The first lock operation plate (11) has 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 first lock operation plate (11). A locking device (12) is rotatably provided in the rotating cavity (113). A limit slot (121) is provided on the top of the locking device (12).

6. The special lock for concealed screen doors according to claim 4, 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 first lock operating plate (11). A traction rope winding disc (143) is rotatably provided on the rotating shaft (142). An elastic traction rope (6) connecting the two end limit buckles (5) 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) located on the side of the connection port (141) and facing the first 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).

7. The special lock for concealed screen doors according to claim 6, characterized in that, The locking assembly (13) includes a locking plate (131), a locking plate (132), and a second lock linkage plate (133). The locking plate (131) and the second lock linkage plate (133) are connected and installed together, and the locking plate (132) is vertically installed between the locking plate (131) and the second lock linkage plate (133). The locking plate (131) is set at the first lock operation plate (11) and moves laterally. The second lock linkage plate (133) is set at the traction rope connection plate (14) and moves. 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).

8. The special lock for concealed screen doors according to claim 7, characterized in that, A second lock push block (1332) is provided on the surface of the second lock linkage plate (133) near the second lock mechanism (2). The second lock push block (1332) is provided to slide laterally at the connection port (141). A traction rope fixing groove (1331) is provided on one side of the second lock push block (1332). The traction rope fixing groove (1331) is used to fix the elastic traction rope (6) that pulls the two end limit buckles (5). A lock plate mounting groove (1334) for installing the lock plate (132) is opened in the middle of the second lock linkage plate (133). A spring pressure plate (1333) is provided at the other end of the second lock push block (1332) facing the second lock mechanism (2) and away from the traction rope fixing groove (1331). The spring pressure plate (1333) is provided to move in the spring placement groove (144). 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).

9. The special lock for concealed screen doors according to claim 8, characterized in that, The second lock mechanism (2) includes a second lock operation plate (21), a second lock cover plate (22), and a first lock linkage plate (23). The second lock operation plate (21) is located at the lock operation port (31) on the other side away from the first lock operation plate (11). The second lock cover plate (22) is installed on the side surface of the second lock operation plate (21) facing the first lock operation plate (11). The first lock linkage plate (23) is laterally slidably engaged between the second lock operation plate (21) and the second lock cover plate (22). The second operating plate (21) has a toggle opening (211), the second lock cover plate (22) has a sliding block opening (221), a sliding block (231) is provided on one side surface of the first lock linkage plate (23), the sliding block (231) is provided in the sliding block opening (221) to push the second lock push block (1332), and a toggle block (232) is provided on the other side surface of the first lock linkage plate (23) away from the sliding block (231), the toggle block (232) is provided in the toggle opening (211) to slide.

10. The special lock for concealed screen doors according to claim 1, characterized in that, The upper surface of the buckle mounting beam (7) is provided with a horizontal mounting groove (71). A buckle head assembly (72) is provided in the middle of the bottom wall of the mounting groove (71). The buckle head assembly (72) includes a buckle mounting plate (721). The buckle mounting plate (721) is installed in the middle of the bottom wall of the mounting groove (71). A buckle head (722) is provided on the top of the buckle mounting plate (721). The buckle head (722) is used to lock the buckle plate (132).

Images