Louver with safety lock catch

By designing a locking mechanism on the louvers, and utilizing the cooperation of safety lock blocks, fasteners, and clips, the louvers are interlocked and fixed, solving the problem of the louvers being easily pulled after they rotate and close. This improves privacy and security, and facilitates the concealed use of the locking mechanism.

CN224228562UActive Publication Date: 2026-05-12JIANGSU NISO CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU NISO CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The slats of Venetian blinds are easily pulled open after they have been closed, which reduces privacy and security.

Method used

A louver with a locking mechanism was designed, including a safety lock block, fasteners and clips. The louver blades are interlocked and fixed by a telescopic mechanism and a limiting rope to prevent the blades from being pulled open manually after they are rotated and closed.

Benefits of technology

This design enhances the privacy and security of the blinds, preventing accidental opening of the slats after they have been rotated closed. It also facilitates the storage and concealment of the latches, ensuring that the blinds can be used normally.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a shutter with a safety lock catch, which relates to the field of shutters, and comprises a window frame and a plurality of shutter blades, and the plurality of shutter blades are uniformly distributed and mounted in the window frame; the lock catch mechanism is located on the side walls of the louver blades and used for carrying out lock catch limiting on the louver blades; the lock catch mechanism comprises a safety lock block, a fastener and a clamping piece, and one end of the safety lock block is installed at one end of one louver blade through a telescopic mechanism. By arranging the lock catch mechanism, the closed louvre blades can be conveniently locked, buckled and fixed, so that the situation that the louvre blades are easily influenced by manual pulling after being rotationally closed and are rotationally opened is avoided, and the purpose of effectively improving the use privacy and safety of the louver is achieved; and the safety lock block can be conveniently stored and hidden, so that the purpose of preventing the safety lock block from protruding to influence the normal opening and use of the shutter is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of blinds, and more particularly to a blind with a safety lock. Background Technology

[0002] Venetian blinds are a type of window that originated in China and has a long history and rich cultural connotations. They not only play an important role in architectural design, but are also widely used in modern life due to their multifunctionality. Venetian blinds are usually composed of multiple slats, which can be fixed or movable, and can control light and ventilation by adjusting their angle.

[0003] When using related blinds, such as blinds with movable slats, the overall structure is usually fixed in the area of ​​use by the window frame, while the slats are installed inside the window frame by a drive structure. The drive structure drives the rotating shafts at both ends of the slats to rotate, thereby driving the slats to rotate and thus achieving the effect of rotating and adjusting the angle of the slats.

[0004] However, when using the above method, since the slats can rotate relative to the window frame, the slats of the Venetian blinds are easily pulled open after they have been closed, which greatly reduces the privacy and security of the Venetian blinds and makes them less safe to use.

[0005] Therefore, it is necessary to provide a louver with a safety latch to solve the above-mentioned technical problems. Utility Model Content

[0006] To address the problem that the slats of the aforementioned venetian blinds are easily pulled open after being rotated closed, thus greatly reducing the privacy and security of the blinds and making them unsafe to use, this utility model provides a venetian blind with a safety lock.

[0007] This utility model provides a louver with a safety latch, comprising: a window frame and a plurality of louvers, wherein the plurality of louvers are evenly distributed and installed inside the window frame; a latching mechanism located on the side wall of the plurality of louvers for locking and limiting the louvers; the latching mechanism includes a safety lock block, a fastener, and a locking element, one end of the safety lock block is installed on one end of one of the louvers via a telescopic mechanism, the fastener is installed on the side wall of another adjacent louver, and the locking element is installed on the side wall of the safety lock block.

[0008] Preferably, the fastener includes a connecting block and two fixing slots. One end of the connecting block is fixedly connected to the side wall of another adjacent louver, and the two fixing slots are symmetrically opened on the side wall of the connecting block.

[0009] Preferably, the locking component includes two telescopic slides, two first springs, and two fixing blocks. The two telescopic slides are symmetrically formed on the side wall of the safety lock block. One end of each of the two first springs is fixedly connected to one end of the two telescopic slides. The side walls of the two fixing blocks are slidably connected to the side walls of the two telescopic slides, and one end of each fixing block is fixedly connected to the other end of each of the two first springs. The two fixing blocks also fit into the two fixing slides.

[0010] Preferably, the locking mechanism further includes several limiting ropes, which are symmetrically fixedly connected to one end of several louvers.

[0011] Preferably, the telescopic mechanism includes a storage groove and a second spring. The storage groove is located at the middle of one end of one of the louvers. One end of the second spring is fixedly connected to one end of the storage groove. The side wall of the safety lock block is slidably connected to the side wall of the storage groove, and one end of the safety lock block is fixedly connected to the other end of the second spring.

[0012] Preferably, the telescopic mechanism further includes a push-pull rod, one end of which is fixedly connected to the top of the safety lock block.

[0013] Compared with related technologies, the louver with a safety lock provided by this utility model has the following advantages:

[0014] By setting a locking mechanism, the closed louvers can be easily interlocked and fixed, thus preventing them from being easily opened by human pulling after they have been rotated closed. This effectively improves the privacy and security of the louvers. Furthermore, by setting a telescopic mechanism, the safety lock can be easily stored and hidden, thus preventing the safety lock from protruding and affecting the normal opening and use of the louvers. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the present invention;

[0016] Figure 2 An enlarged view of the locking mechanism provided by this utility model;

[0017] Figure 3 A partial exploded cross-sectional view of the locking mechanism provided by this utility model;

[0018] Figure 4 An exploded bottom view of the telescopic mechanism provided by this utility model.

[0019] The following are the labels in the diagram: 1. Window frame; 2. Louver; 3. Locking mechanism; 301. Safety lock block; 4. Fastener; 401. Connecting block; 402. Fixing slot; 5. Clip; 501. Telescopic slide; 502. First spring; 503. Fixing block; 6. Limiting rope; 7. Telescopic mechanism; 701. Retractable slide; 702. Second spring; 8. Push-pull rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figures 1 to 4 A louver with a safety latch includes: a window frame 1 and a plurality of louvers 2, wherein the plurality of louvers 2 are evenly distributed and installed inside the window frame 1; and a latching mechanism 3 located on the side wall of the plurality of louvers 2 for latching and limiting the louvers 2.

[0022] The locking mechanism 3 includes a safety lock block 301, a fastener 4, and a locking element 5. One end of the safety lock block 301 is installed on one end of one of the louvers 2 via a telescopic mechanism 7. The fastener 4 is installed on the side wall of another adjacent louver 2. The locking element 5 is installed on the side wall of the safety lock block 301.

[0023] The fastener 4 includes a connecting block 401 and two fixing slots 402. One end of the connecting block 401 is fixedly connected to the side wall of another adjacent louver 2, and the two fixing slots 402 are symmetrically opened on the side wall of the connecting block 401.

[0024] The locking component 5 includes two telescopic slides 501, two first springs 502, and two fixing blocks 503. The two telescopic slides 501 are symmetrically opened on the side wall of the safety lock block 301. One end of each of the two first springs 502 is fixedly connected to one end of each of the two telescopic slides 501. The side walls of the two fixing blocks 503 are slidably connected to the side walls of each of the two telescopic slides 501. One end of each fixing block 503 is fixedly connected to the other end of each of the two first springs 502. The two fixing blocks 503 are engaged with the two fixing slots 402.

[0025] The locking mechanism 3 also includes several limiting ropes 6, which are symmetrically fixed to one end of several louvers 2.

[0026] In the specific implementation process, firstly, the drive mechanism drives the louver 2, which is installed in the window frame 1, to close, thereby closing the louver window (the drive mechanism uses existing technology, and the specific working principle is not described in detail here). Then, the telescopic mechanism 7 pulls out the safety lock block 301 at one end of one of the middle louver 2, and presses the fixed block 503 to make it slide into the telescopic groove 501 on the side wall of the safety lock block 301. At this time, the louver 2 rotates to close, so that the safety lock block 301 on the middle louver 2 is attached and embedded to the connecting block 401 on the other louver 2. Then, the first spring 502 provides a reaction force, so that the fixed block 503 is forced to spring back and slide out from the telescopic groove 501. The fixed block 503 springs back and slides out, and inserts into the fixed groove 402 on the side wall of the connecting block 401 to form a limiting engagement and fixation, thereby fixing the two middle louver 2. The two middle louvers 2 are interlocked and fixed, preventing them from rotating. The limiting rope 6 can then pull and limit the remaining louvers 2 on both sides. Similarly, when the louvers 2 need to be opened, the fixing block 503 is pressed by the fixing slot 402, causing it to contract and release from the slot. This allows the safety lock block 301 to be pulled out of the connecting block 401, thus disconnecting the two middle louvers 2. The driving mechanism can then rotate the louvers 2 to open the blinds. The limiting rope 6 moves with the opening of the louvers 2 without affecting their operation. This interlocking mechanism effectively secures the closed louvers 2, preventing them from being easily pulled open after rotation and improving privacy and security.

[0027] Furthermore, the telescopic mechanism 7 includes a storage groove 701 and a second spring 702. The storage groove 701 is opened at the middle of one end of one of the louvers 2. One end of the second spring 702 is fixedly connected to one end of the storage groove 701. The side wall of the safety lock block 301 is slidably connected to the side wall of the storage groove 701, and one end of the safety lock block 301 is fixedly connected to the other end of the second spring 702.

[0028] The telescopic mechanism 7 also includes a push-pull rod 8, one end of which is fixedly connected to the top of the safety lock block 301.

[0029] It should be noted that: by pulling the push-pull rod 8, a force is applied to cause the connected safety lock block 301 to slide out from the storage groove 701 at one end of one of the middle louvers 2. The sliding extension of the safety lock block 301, in conjunction with the connecting block 401, interlocks and fixes the two middle louvers 2. Furthermore, after the safety lock block 301 is pulled out from the connecting block 401, the second spring 702 provides a reaction force, thereby driving the... The safety lock block 301 slides and retracts into the storage groove 701 under force. During the retraction process, the trapezoidal fixed block 503 contacts the storage groove 701 and is automatically or manually pressed to retract into the telescopic groove 501. This allows the safety lock block 301 to retract normally into the storage groove 701, making it easy to store and hide the safety lock block 301, thus avoiding the safety lock block 301 protruding and affecting the normal opening and use of the blinds.

[0030] The working principle of the louver with a safety lock provided by this utility model is as follows:

[0031] In use, firstly, the drive mechanism drives the louvers 2, which are installed inside the window frame 1, to close, thereby closing the louver. Then, by pulling the push rod 8, force is applied to cause the safety lock block 301 connected to it to slide out from the storage groove 701 at one end of one of the middle louvers 2. Then, by pressing the fixing block 503, it slides into the telescopic groove 501 on the side wall of the safety lock block 301. At this time, by rotating and closing the louvers 2, the safety lock block 301 on the middle louver 2 is attached and embedded to the connecting block 401 on the other louver 2. Finally, the first spring 502 lifts the louver. The reaction force causes the fixing block 503 to spring back and slide out from the telescopic groove 501. The springback and sliding extension of the fixing block 503 allows it to insert into the fixing groove 402 on the side wall of the connecting block 401, forming a limiting engagement and fixing. This interlocks and fixes the two middle louvers 2, preventing them from rotating. The limiting rope 6 can then pull and limit the remaining louvers 2 on both sides, thus preventing the other louvers 2 from rotating. Similarly, when it is necessary to rotate and open the louvers 2, the fixing block 503 is pressed through the fixing groove 402. 03. By compressing and releasing the locking mechanism, the safety lock block 301 can be pulled out of the connecting block 401. This disconnects the two middle louvers 2, allowing the drive mechanism to rotate the louvers 2 and open the blinds. The limiting rope 6 moves with the opening of the louvers 2 without affecting their operation. This effectively secures the closed louvers 2 with interlocking clips, preventing them from being easily pulled open after rotation and thus improving the privacy and security of the blinds. The purpose is twofold. First, after the safety lock block 301 is pulled out from the connecting block 401, the second spring 702 provides a reaction force, which causes the safety lock block 301 to slide and retract into the storage groove 701. During the retraction process, the trapezoidal fixed block 503 contacts the storage groove 701 and is automatically or manually pressed to retract into the telescopic groove 501. This allows the safety lock block 301 to retract normally into the storage groove 701, thus effectively facilitating the storage and concealment of the safety lock block 301 and preventing it from protruding and affecting the normal opening and use of the blinds.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A venetian blind with a safety lock, characterized in that, include: A window frame (1) and a plurality of louvers (2), wherein the plurality of louvers (2) are evenly distributed and installed inside the window frame (1); A locking mechanism (3) is located on the side wall of several louvers (2) for locking and limiting the louvers (2); The locking mechanism (3) includes a safety lock block (301), a fastener (4) and a locking element (5). One end of the safety lock block (301) is installed on one end of one of the louvers (2) through a telescopic mechanism (7). The fastener (4) is installed on the side wall of another adjacent louver (2). The locking element (5) is installed on the side wall of the safety lock block (301).

2. A louver with a safety lock according to claim 1, characterized in that, The fastener (4) includes a connecting block (401) and two fixing slots (402). One end of the connecting block (401) is fixedly connected to the side wall of another adjacent louver (2). The two fixing slots (402) are symmetrically opened on the side wall of the connecting block (401).

3. A louver with a safety lock according to claim 2, characterized in that, The locking component (5) includes two telescopic slides (501), two first springs (502), and two fixing blocks (503). The two telescopic slides (501) are symmetrically opened on the side wall of the safety lock block (301). One end of each of the two first springs (502) is fixedly connected to one end of each of the two telescopic slides (501). The side walls of the two fixing blocks (503) are slidably connected to the side walls of the two telescopic slides (501), and one end of each fixing block (503) is fixedly connected to the other end of each of the two first springs (502). The two fixing blocks (503) are engaged with the two fixing slots (402).

4. A venetian blind with a safety lock according to claim 1, characterized in that, The locking mechanism (3) also includes several limiting ropes (6), which are symmetrically fixed to one end of several louvers (2).

5. A venetian blind with a safety lock according to claim 1, characterized in that, The telescopic mechanism (7) includes a storage groove (701) and a second spring (702). The storage groove (701) is opened at the middle of one end of one of the louvers (2). One end of the second spring (702) is fixedly connected to one end of the storage groove (701). The side wall of the safety lock block (301) is slidably connected to the side wall of the storage groove (701), and one end of the safety lock block (301) is fixedly connected to the other end of the second spring (702).

6. A louver with a safety lock according to claim 5, characterized in that, The telescopic mechanism (7) also includes a push-pull rod (8), one end of which is fixedly connected to the top of the safety lock block (301).