Automatic snap lock with guard security key for screen or sliding window

Abstract

The application discloses an automatic spring lock with a guard safety key for a screen window or a sliding window, which is arranged on a pull beam and a screen window locking mechanism at the terminal of a window frame slide. The screen window locking mechanism is arranged on the pull beam and comprises pull beam end caps fixed to the two ends of the pull beam through mounting screws, two movable lock bodies arranged in the pull beam and connected through return springs, a lock rod arranged on each movable lock body at the side of the pull beam end cap, and an end of the lock rod penetrating through the pull beam end cap and inserted into a limiting hook of a locking hook under the action of the return spring when the pull beam moves to the terminal of the window frame slide, so as to limit the movement of the pull beam. In addition, the locking control mechanism is arranged for releasing the limiting of the lock rod by the locking hook and canceling the limitation of the pull beam, and for locking the movement of the pull beam by locking the lock rod. The application has the functions of protection, anti-misoperation and anti-falling, has a compact and reasonable structure, is low in cost, is convenient for processing and production, and can be widely applied to screen windows, doors and windows and the like.

Description

Technical Field

[0001] This invention relates to an automatic spring-loaded lock hardware system. In particular, it relates to an automatic spring-loaded lock with a protective security key for use with screens or sliding windows. Background Technology

[0002] Currently available automatic spring-loaded lock hardware for screens and doors locks itself after the screen or sliding window is closed by pulling it, and can be opened by pressing a button. It's a relatively aesthetically pleasing and convenient automatic lock. However, a drawback of this existing product is that the spring-loaded lock is easily opened. Children and the elderly can easily open it, posing a significant safety risk, especially in high-rise buildings where accidental falls are common. The market has raised the safety requirements for existing automatic spring-loaded lock hardware to a higher level. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic spring lock with a protective safety key for screen windows or sliding windows, which has functions of preventing accidental opening, preventing accidental falls, and providing safety protection.

[0004] The technical solution adopted in this invention is: an automatic spring lock with a protective safety key for screen windows or sliding windows, comprising a pull beam that moves the screen or window sash along a window frame track by a pushing and pulling action, a screen locking mechanism disposed on the pull beam and at the end of the window frame track, wherein the portion of the screen locking mechanism disposed at the end of the window frame track consists of a locking hook fixedly disposed at the end of the window frame track, and the portion of the screen locking mechanism disposed on the pull beam includes: pull beam end caps fixedly connected to both ends of the pull beam by mounting screws, and correspondingly... Two movable lock bodies are installed inside the pull beam and connected by a return spring. Each movable lock body has a locking rod on one side of the pull beam end cap. When the pull beam moves to the end of the window frame track, the end of the locking rod, under the action of the return spring, penetrates the pull beam end cap and inserts into the limiting hook of the locking hook, thereby restricting the movement of the pull beam. The screen window locking mechanism also includes a locking control mechanism, which is used to release the locking hook from limiting the locking rod, thereby canceling the restriction on the pull beam, and to lock the movement of the pull beam by locking the locking rod.

[0005] This invention provides an automatic spring-loaded lock with a protective safety key for screen windows or sliding windows, which has functions such as preventing accidental opening, preventing accidental falls, and providing safety protection. Specifically, it has the following beneficial effects:

[0006] 1. Protective and safe automatic spring lock hardware system, equipped with a safety lock structure device, with multiple functions such as protection, prevention of accidental opening, and prevention of accidental falls.

[0007] 2. The automatic spring-loaded safety hardware system of this invention has a simple, effective, and scientifically sound structure. It can be widely used in screen windows, doors, windows, and curtain wall systems.

[0008] 3. The product of this invention has a compact and reasonable structure, low cost, and is easy to process and produce. It can form standardized operations and is conducive to large-scale promotion. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the present invention used for window screens;

[0010] Figure 2 This is a schematic diagram of the structure of the present invention used in a window sash;

[0011] Figure 3 This is a schematic diagram of the structure of the pull beam portion with protective safety key in this invention;

[0012] Figure 4 yes Figure 3 A schematic diagram of the exploded structure of the first embodiment;

[0013] Figure 5 This is an exploded structural diagram of the lock body portion in the first embodiment;

[0014] Figure 6 yes Figure 3 A schematic diagram of the exploded structure of the second embodiment;

[0015] Figure 7 This is an exploded structural diagram of the lock body in the second embodiment.

[0016] In the picture

[0017] 1: Tie beam 2: Mesh netting

[0018] 3: Window sash 4: Window frame track

[0019] 5: Tie beam end cap; 6: Movable lock body

[0020] 7: Return spring; 8: Locking rod

[0021] 9: Locking hook 10: Limiting post

[0022] 11: Card slot; 12: Locking housing

[0023] 13: Spring button 14: Unlock post

[0024] 15: Oval hole 16: Key

[0025] 17: First base 18: First lock cylinder

[0026] 19: Torsion stop 20: Limit rack box

[0027] 21: Second base; 22: Second lock cylinder

[0028] 23: Gear shaft 24: Gear

[0029] 25: Upper rack; 26: Lower rack

[0030] 27: Slide rail 28: Slide groove

[0031] 29: Arc-shaped baffle 30: Groove Detailed Implementation

[0032] The following describes in detail an automatic spring lock with a protective safety key for screen windows or sliding windows according to the present invention, with reference to embodiments and accompanying drawings.

[0033] like Figure 1 , Figure 2 Figure 3 As shown, an automatic spring lock with a protective safety key for screen windows or sliding windows according to the present invention includes a pull beam 1 that moves the screen 2 or window sash 3 along a window frame track 4 by a pushing and pulling action, a screen window locking mechanism disposed on the pull beam 1 and at the end of the window frame track 4, wherein the portion of the screen window locking mechanism disposed at the end of the window frame track 4 is a locking hook 9 fixedly disposed at the window frame at the end of the window frame track 4, and the portion of the screen window locking mechanism disposed on the pull beam 1 is as follows: Figure 4 As shown, the screen window locking mechanism includes: a pull beam end cap 5 fixedly connected to both ends of the pull beam 1 by mounting screws; two movable lock bodies 6 correspondingly disposed inside the pull beam 1 and connected by a return spring 7; each movable lock body 6 has a locking rod 8 on one side of the pull beam end cap 5; when the pull beam 1 moves to the end of the window frame track 4, the end of the locking rod 8 penetrates the pull beam end cap 5 and inserts into the limiting hook of the locking hook 9 under the action of the return spring 7, thereby restricting the movement of the pull beam 1; the screen window locking mechanism also includes a locking control mechanism, which is used to release the locking hook 9 from limiting the locking rod 8, thereby canceling the restriction on the pull beam 1, and to lock the movement of the pull beam 1 by locking the locking rod 8.

[0034] like Figure 4 , Figure 5As shown, the locking mechanism includes: a locking hole 11 formed on the outer side of the movable lock body 6, and a locking housing 12 disposed on the outer side of the pull beam 1. Spring buttons 13 are inserted into both sides of the locking housing 12. The spring buttons 13 have an unlocking pin 14 formed on the side corresponding to the locking hole 11, which can be inserted into the locking hole 11. The unlocking pin 14 is inserted into the locking hole 11 through an elliptical hole 15 formed on the inner side of the locking housing 12. Under the control of the spring buttons 13, the two movable lock bodies 6 are driven to move towards each other, thereby causing the locking rod 8 to disengage from the locking hook 9. A lock cylinder mechanism for controlling the locking rod 8 to lock or unlock by a key 16 is provided between the middle of the locking housing 12 and the two movable lock bodies 6.

[0035] like Figure 4 , Figure 5 As shown, the lock cylinder mechanism includes: limiting posts 10 respectively disposed on the side of the two movable lock bodies 6 away from the locking rod 8; a first base 17 embedded and fixed in the through hole formed in the middle of the lock control housing 12; and a first lock cylinder 18 passing through the center hole of the first base 17 located in the through hole from the outside of the lock control housing 12 and fixedly connected to a torsion block 19 located on the inside of the lock control housing 12. The torsion block 19 corresponds to the limiting posts 10. Under the drive of the key 16, the first lock cylinder 18 drives the torsion block 19 to rotate through the first base 17 to control the movement of the limiting posts 10, thereby controlling whether the locking rod 8 disengages from the locking hook 9.

[0036] The torsion block 19 has a pair of symmetrical arc-shaped baffles 29 formed along the circumference of one end corresponding to the limiting post 10 to prevent the limiting post 10 from moving towards each other, and a pair of grooves 30 to allow the limiting post 10 to move towards each other. Therefore, when the torsion block 19 is rotated to the state where the pair of arc-shaped baffles 29 are in contact with the limiting post 10 using the key 16, the limiting post 10 cannot move, thus locking the pull beam 1. When the torsion block 19 is rotated to the state where the pair of grooves 30 correspond to the limiting post 10 using the key 16, the limiting post 10 can move towards each other, thus unlocking the pull beam 1.

[0037] like Figure 6 , Figure 7As shown, the lock cylinder mechanism may further include: a limiting rack box 20 disposed between the two movable lock bodies 6 and fixedly connected to one side of the lock control housing 12; a second base 21 embedded and fixed in the through hole formed in the middle of the lock control housing 12; a second lock cylinder 22 inserted into the second base 21; a gear shaft 23 formed at the end of the second lock cylinder 22 away from the keyhole; the end of the gear shaft 23 passes through the center hole of the second base 21 located in the through hole from the other side of the lock control housing 12 and is inserted into the limiting rack box 20, and is connected to the limiting rack mechanism in the limiting rack box 20; the gear shaft 23, driven by the key 16, drives the limiting rack mechanism to control the movement of the two movable lock bodies 6, thereby controlling whether the lock rod 8 disengages from the locking hook 9.

[0038] The limiting rack mechanism includes a gear 24 fixedly connected to the gear shaft 23, an upper rack 25 and a lower rack 26 respectively meshing with the gear 24, and a slide rail 27 formed on the side of the upper rack 25 and the lower rack 26 away from the gear 24. The slide rails 27 on the upper rack 25 and the lower rack 26 are respectively embedded in the slide grooves 28 formed on the upper end face and the lower end face of the limiting rack box 20.

[0039] The working principle of an automatic spring lock with a protective safety key for screen windows or sliding windows according to the present invention is given below.

[0040] I. Working principle of the first embodiment

[0041] 1. Locking Operation

[0042] The tie beam 1 moves the screen 2 up and down or left and right along the sliding tracks 4 on both sides of the window frame to the bottom of the track. Figure 1 , Figure 2 As shown.

[0043] like Figure 4 , Figure 5 As shown, when the locking rod 8 reaches the position of the locking hook 9, it begins to retract. The locking rod 8 drives the movable lock body 6 to retract, and the return spring 7 between the two movable lock bodies 6 is compressed. When the locking rod 8 passes the inclined platform of the locking hook 9 and gets stuck at its lower part, the return spring 7 is released, and the movable lock body 6 drives the locking rod 8 to push out and reset. The locking rod 8 is locked with the locking hook 9.

[0044] Insert key 16 into first lock cylinder 18 and twist it at least 90 degrees. First lock cylinder 18 drives twisting block 19 to rotate 90 degrees. Arc-shaped baffle 29 blocks limit post 10. Lock rod 8 cannot disengage from locking hook 9. Pull out key 16 and lock pull beam 1 securely.

[0045] Without using key 16 to open, press the spring buttons 13 on both sides of the lock housing 12. The unlocking pin 14 on the spring button 13 drives the movable lock body 6 to move through the locking hole 11. The limiting pin 10 on the movable lock body 6 is pressed against the arc-shaped baffle 29 on the torsion block 19 and cannot move. The lock housing 12 also cannot move, the locking rod 8 cannot disengage from the locking hook 9, and the pull beam 1 cannot be opened.

[0046] 2. Start Operation

[0047] Insert key 16 into first lock cylinder 18 and twist it 90 degrees. First lock cylinder 18 rotates 90 degrees with twist stop 19, and groove 30 flips to open position. Remove key 16 to unlock. Then press spring buttons 13 on both sides. Unlock pin 14 on spring button 13 drives movable lock body 6 to move to the middle through locking hole 11. Limit pin 10 on movable lock body 6 moves into groove 30. Lock control housing 12 drives lock rod 8 to move to the middle. Return spring 7 is compressed. Lock rod 8 ends disengage from locking hook 9. Pull beam 1 springs back to reset under the action of screen window torsion spring. Release spring button 13. Spring button 13 springs back to reset. Lock control housing 12 drives lock rod 8 to spring back to initial state under the action of return spring 7.

[0048] II. Working Principle of the Second Embodiment

[0049] 1. Locking Operation

[0050] The tie beam 1 moves the screen 3 up and down or left and right along the window frame tracks 4 on both sides to the bottom of the window frame tracks 4. Figure 1 , Figure 2 As shown.

[0051] like Figure 6 , Figure 7 As shown, the locking rod 8 begins to compress when it reaches the position of the locking hook 9. The locking rod 8 drives the locking control housing 12 to compress, and one end of the two movable lock bodies 6 moves to both ends of the limiting rack box 20, which is in its initial state. The return spring 7 is compressed. When the locking rod 8 passes the inclined platform of the locking hook 9, the return spring 7 is released, and the locking control housing 12 drives the locking rod 8 to push out, locking the locking rod 8 with the locking hook 9.

[0052] Insert key 16 into the second lock cylinder 22 and turn it. The second lock cylinder 22 drives the gear 24 to rotate, and the upper rack 25 and lower rack 26 extend beyond the preset length of the limiting rack box 20. When key 16 is removed, the lock rod 8 and the locking hook 9 are securely locked.

[0053] Without using the key 16 to open, press the spring buttons 13 on both sides of the lock housing 12. The unlocking pin 14 on the spring button 13 drives the movable lock body 6 to move through the locking hole 11. At this time, the lock housing 12 cannot move because it is pressed against the extended upper rack 25 and lower rack 26. Therefore, the movable lock body 6 cannot move, the locking rod 8 cannot disengage from the locking hook 9, and the pull beam 1 cannot be opened.

[0054] 2. Start Operation

[0055] Insert key 16 into the second lock cylinder 22 and rotate it. The second lock cylinder 22 drives the gear 24 to rotate, and the upper rack 25 and lower rack 26 rotate and retract into the limiting rack box 20. Remove key 16 to unlock. Then press the spring buttons 13 on both sides of the lock control housing 12. The unlocking pin 14 on the lock control housing 12 drives the movable lock body 6 to move towards the center through the locking hole 11. The movable lock body 6 drives the locking rod 8 to move towards the center. The return spring 7 is compressed, and the two ends of the locking rod 8 are disengaged from the locking hook 9. The pull beam 1 springs back to its original position under the action of the screen window torsion spring. Release the spring button 13. The spring button 13 springs back to its original position. The movable lock body 6 drives the locking rod 8 to spring back to its initial position under the action of the return spring 7.

Claims

1. An automatic spring lock with a protective safety key for a screen window or sliding window, comprising a pull beam (1) that moves the screen (2) or window sash (3) along a window frame track (4) by a pushing or pulling action, and a screen window locking mechanism disposed on the pull beam (1) and at the end of the window frame track (4), wherein, The screen window locking mechanism located at the end of the window frame slide (4) is a locking hook (9) fixedly installed at the window frame at the end of the window frame slide (4). The screen window locking mechanism located in the pull beam (1) includes: a pull beam end cap (5) fixedly connected to both ends of the pull beam (1) by mounting screws, and two movable lock bodies (6) correspondingly installed in the pull beam (1) and connected by a return spring (7). Each movable lock body (6) has a locking rod (8) on one side of the pull beam end cap (5). When the pull beam (1) moves to the end of the window frame slide (4), the end of the locking rod (8) is inserted into the limiting hook of the locking hook (9) through the pull beam end cap (5) under the action of the return spring (7), thereby restricting the movement of the pull beam (1). The screen window locking mechanism is characterized in that it also includes a locking control mechanism, which is used to release the locking hook (9) from limiting the locking rod (8) to cancel the restriction on the pull beam (1), and to lock the movement of the pull beam (1) by locking the locking rod (8). The locking mechanism includes: a card hole (11) formed on the outer side of the movable lock body (6) and a locking housing (12) provided on the outer side of the pull beam (1). Spring buttons (13) are inserted into both sides of the locking housing (12). The spring button (13) has an unlocking pin (14) on the side corresponding to the card hole (11) that can be inserted into the card hole (11). The unlocking pin (14) is inserted into the card hole (11) through an elliptical hole (15) formed on the inner side of the locking housing (12). Under the control of the spring button (13), the two movable lock bodies (6) are driven to move towards each other, thereby driving the locking rod (8) to disengage from the locking hook (9). A lock cylinder mechanism for controlling the locking rod (8) to lock or unlock by a key (16) is provided between the middle of the locking housing (12) and the two movable lock bodies (6). The lock cylinder mechanism includes: a limiting post (10) respectively disposed on the side of the two movable lock bodies (6) away from the lock rod (8); a first base (17) embedded and fixed in the through hole formed in the middle of the lock control housing (12); a first lock cylinder (18) passing through the center hole of the first base (17) located in the through hole from the outside of the lock control housing (12) and fixedly connected to a torsion block (19) located on the inside of the lock control housing (12); the torsion block (19) corresponds to the limiting post (10); the first lock cylinder (18) drives the torsion block (19) to rotate through the first base (17) under the drive of the key (16) to control the movement of the limiting post (10), thereby controlling whether the lock rod (8) disengages from the locking hook (9).

2. An automatic spring lock with a protective safety key for screen windows or sliding windows according to claim 1, characterized in that, The torsion block (19) has a pair of symmetrical arc-shaped baffles (29) formed along the circumference at one end of the limiting post (10) to prevent the limiting post (10) from moving towards each other, and a pair of grooves (30) to allow the limiting post (10) to move towards each other. When the torsion block (19) is rotated to the state where the pair of arc-shaped baffles (29) are in contact with the limiting post (10) by the key (16), the limiting post (10) cannot move, that is, the pull beam (1) is locked. When the torsion block (19) is rotated to the state where the pair of grooves (30) are corresponding to the limiting post (10) by the key (16), the limiting post (10) moves towards each other, that is, the pull beam (1) is unlocked. Insert the key (16) into the first lock cylinder (18) and turn it 90 degrees. The first lock cylinder (18) drives the twisting block (19) to rotate 90 degrees. The arc-shaped baffle (29) blocks the limit post (10). The lock rod (8) cannot disengage from the locking hook (9). Pull out the key (16) and the safety lock pull beam (1) is activated. When the key (16) is not used to open the lock, the spring buttons (13) on both sides of the lock housing (12) are pressed. The unlocking pin (14) on the spring button (13) drives the movable lock body (6) to move through the locking hole (11). The limiting pin (10) on the movable lock body (6) is pressed against the arc-shaped baffle (29) on the torsion block (19) and cannot move. The lock housing (12) cannot move either. The lock rod (8) cannot disengage from the locking hook (9) and the pull beam (1) cannot be opened. Insert the key (16) into the first lock cylinder (18) and twist it 90 degrees. The first lock cylinder (18) rotates 90 degrees with the twist stop (19), and the groove (30) flips to the open position. Pull out the key (16) to unlock. Then press the spring buttons (13) on both sides. The unlocking pin (14) on the spring button (13) drives the movable lock body (6) to move to the middle through the card hole (11). The limiting pin (10) on the movable lock body (6) moves into the groove (30). The lock control housing (12) drives the lock rod (8) to move to the middle. The return spring (7) is compressed. The two ends of the lock rod (8) are separated from the locking hook (9). The pull beam (1) rebounds and resets under the action of the screen window torsion spring. Release the spring button (13). The spring button (13) rebounds and resets. The lock control housing (12) drives the lock rod (8) to rebound and reset to the initial state under the action of the return spring (7).

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