A dual-layer out-swing window sash anti-falling lock catch structure
The coordinated design of the push-pull rod, U-shaped slider, and limit counterweight solves the problem of the steel wire rope of the double-layer outward opening window being easily caught, thus achieving smooth opening and closing of the window sash and improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LIBAI HARDWARE CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-29
AI Technical Summary
The steel wire ropes of double-glazed outward-opening windows are prone to getting caught between the window frame and the window sash, causing the window sash to jam and suffer severe wear, affecting ease of use and safety performance.
A fall-prevention locking structure was designed. Through the linkage of the push-pull rod, U-shaped slider, limit counterweight and limit slider, multiple limits and guidance of the wire rope are realized to prevent the wire rope from getting stuck in the rotation gap between the window frame and the window sash when the window sash is opened and closed.
It improves the smoothness of window opening and closing and structural stability, enhances the safety performance of windows, prevents steel wire rope from slack or deviating, and extends service life.
Smart Images
Figure CN224300761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of window support technology, specifically to a fall-prevention locking structure for a double-layer outward-opening window sash. Background Technology
[0002] Double-glazed outward-opening windows consist of two layers of sashes, both opening outwards. The two sashes can open in the same or opposite directions (e.g., both the inner and outer layers open outwards or are top-hung). They typically use frames made of materials such as thermally broken aluminum alloy or PVC, and the glass is usually double-glazed tempered glass to enhance thermal insulation and soundproofing. This opening method provides good indoor lighting and ventilation without taking up interior space. However, the outward-opening structure causes the load-bearing hardware (such as hinges and sliding supports) to age easily due to long-term wind pressure, posing a risk of the sash falling. Especially in high-rise buildings, additional safety devices such as anti-fall locks and limiters are required.
[0003] In the safety protection design of double-layer outward-opening window sashes, using steel wire ropes as the connecting components of the anti-fall safety buckle is a common technical means. Steel wire ropes, with their high tensile strength, can play a certain role in preventing the window sash from falling accidentally. However, in actual use, this structure has exposed significant drawbacks. In particular, the steel wire rope is prone to getting caught between the window frame and the window sash, which affects the normal use and safety performance of the window sash. Because the window sash of a double-layer outward-opening window needs to rotate significantly around the hinge during opening and closing, the steel wire rope in the traditional safety buckle is usually connected by a simple suspension or fixed connection, which lacks effective restraint on the movement trajectory of the steel wire rope. When the window sash is opened and closed, the steel wire rope is prone to getting caught in the rotation gap between the window frame and the window sash due to slackness, swinging, or installation position misalignment. Once the steel wire rope is caught, it will not only hinder the normal opening and closing of the window sash, causing jamming and difficult operation, but long-term use will also accelerate the wear of the steel wire rope, causing damage to the outer protective layer and breakage of the internal steel wires, greatly reducing its anti-fall strength. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a fall-prevention locking structure for a double-layer outward-opening window sash, which has the advantages of anti-pinch and self-limiting, and solves the problems mentioned in the background technology, such as the steel wire rope being easily caught between the window frame and the window sash, severe wear, and fall-prevention failure.
[0005] To achieve the aforementioned anti-pinch and self-limiting objectives, this utility model provides the following technical solution: a fall-prevention locking structure for a double-layer outward-opening window sash, comprising a window mounting frame and a double-layer window sash rotatably connected to one side of the window mounting frame. A sliding groove is provided on the inner wall of the window mounting frame near the double-layer window sash. An installation block is installed between the sliding grooves. An installation block is fixedly connected to the lower part of the side of the double-layer window sash rotatably connected to the window mounting frame. A steel wire rope passes through and slidably connects the middle of the installation block and the installation block. A U-shaped slider is slidably connected to the upper part of the inner cavity of the sliding groove. A rotating rod is passed through and rotatably connected to one side of the U-shaped slider. A circular connecting block is fixedly connected to the middle of the outer wall of the rotating rod. A rotating rod is passed through and rotatably connected to one side of the circular connecting block. A push-pull rod is fixedly connected to the outer wall of the rotating rod. A mounting base is fixedly connected to the upper part of the side of the double-layer window sash near the window mounting frame. The side of the push-pull rod away from the rotating rod is rotatably connected to the mounting base.
[0006] As a further embodiment of this utility model: the bottom of the wire rope passes through the second mounting block and is fixedly connected to a limiting counterweight block, and the top of the limiting counterweight block abuts against the second mounting block.
[0007] As a further embodiment of this utility model: the bottom of the wire rope passes through the second mounting block and is fixedly connected to a limiting counterweight block, and the top of the limiting counterweight block abuts against the second mounting block.
[0008] As a further improvement of this utility model, mounting plates are fixedly connected to both sides of the bottom of the second mounting block.
[0009] As a further improvement of this utility model: both of the two mounting plates are provided with a second sliding groove on one side close to each other, and the limiting slider slides within the second sliding groove.
[0010] As a further improvement of this utility model: the upper and lower sides of the double-layer window sash are rotatably connected with auxiliary rods, and the side of the auxiliary rod away from the double-layer window sash is rotatably connected to the window mounting frame.
[0011] As a further improvement of this utility model: the wire rope is fixedly connected to the top outer wall of the mounting block one with a limiting plate, and the limiting plate abuts against the mounting block one.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, when the double-layer window sash is closed, the push-pull rod resets, causing the U-shaped slider to move upward, the steel wire rope to tighten and retract, and simultaneously driving the limit counterweight and the limit slider to reset. Through the multiple limiting and guiding linkages composed of components such as the mounting base, push-pull rod, U-shaped slider, and steel wire rope, the steel wire rope is effectively prevented from getting stuck in the rotation gap between the window frame and the window sash when the window sash is opened and closed, significantly improving the smoothness of the window sash opening and closing and the structural stability, ensuring both the convenience of use and the safety performance of the window.
[0014] 2. When the double-layer window sash is opened, the side mounting bracket drives the push-pull rod to tilt, and the circular connecting block at the other end of the push-pull rod rotates. At the same time, the circular connecting block and the rotating rod rotate synchronously in the U-shaped slider, realizing flexible displacement at multiple angles. As the push-pull rod tilts, the U-shaped slider slides down along the slide groove, pulling the steel wire rope down. The limiting plate on the outside of the steel wire rope slides down until it abuts against the mounting block for limitation. At the same time, the limiting counterweight at the bottom of the steel wire rope descends under the force of gravity, and the limiting sliders on both sides slide smoothly along another slide groove, forming a double guiding constraint. The gravity of the limiting counterweight provides continuous tension to the steel wire rope. Combined with the precise sliding of the limiting slider, it prevents the steel wire rope from slack or deviating. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 This is a schematic diagram of one side of the double-layered window sash of this utility model;
[0018] Figure 4 This is a schematic diagram of the mounting block of this utility model;
[0019] Figure 5 For the present utility model Figure 4 Enlarged view at point B in the middle;
[0020] Figure 6 This is a schematic diagram of the mounting plate of this utility model;
[0021] Figure 7 For the present utility model Figure 6 Enlarged view of point C in the middle.
[0022] In the diagram: 1. Window mounting frame; 2. Double-layer window sash; 3. Slide rail one; 4. Mounting block one; 5. Mounting block two; 6. Steel wire rope; 7. Limiting plate; 8. U-shaped slider; 9. Rotating rod one; 10. Circular connecting block; 11. Rotating rod two; 12. Push-pull rod; 13. Mounting base; 14. Mounting plate; 15. Slide rail two; 16. Limiting counterweight block; 17. Limiting slider; 18. Auxiliary rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-7 In this embodiment of the utility model, a fall-prevention locking structure for a double-layer outward-opening window sash includes a window mounting frame 1 and a double-layer window sash 2 rotatably connected to one side of the window mounting frame 1. A groove 3 is provided on the inner wall of the window mounting frame 1 near the double-layer window sash 2. An installation block 4 is installed between the grooves 3. An installation block 5 is fixedly connected to the lower part of the side of the double-layer window sash 2 rotatably connected to the window mounting frame 1. A steel wire rope 6 passes through and slides between the installation block 4 and the installation block 5. A U-shaped slider 8 is slidably connected to the upper part of the inner cavity of the groove 3. A rotating rod 9 passes through and rotatably connects to one side of the U-shaped slider 8. A circular connecting block 10 is fixedly connected to the middle of the outer wall of the rotating rod 9. A rotating rod 11 passes through and rotatably connects to one side of the circular connecting block 10. A push-pull rod 12 is fixedly connected to the outer wall of the rotating rod 11. When the double-layer window sash 2 is opened, the mounting seat 13 installed on its side will cause the push-pull rod 12 to tilt. The other end of the push-pull rod 12 rotates flexibly around the circular connecting block 10 through the rotating rod 11, driving the circular connecting block 10 and the rotating rod 9 to rotate synchronously in the U-shaped slider 8, realizing the multi-angle flexible displacement of the push-pull rod 12. The upper part of the double-layer window sash 2 near the window mounting frame 1 is fixedly connected to the mounting seat 13. The side of the push-pull rod 12 away from the rotating rod 11 is rotatably connected to the mounting seat 13. As the push-pull rod 12 tilts, the U-shaped slider 8 slides down along the slide groove 3, synchronously pulling the steel wire rope 6 down. The limiting plate 7 on the outside of the steel wire rope 6 slides down until it abuts against the mounting block 4 for limiting.
[0025] The bottom of the wire rope 6 passes through the mounting block 2 5 and is fixedly connected to a limiting counterweight 16. The top of the limiting counterweight 16 abuts against the mounting block 2 5. The limiting counterweight 16, fixedly connected to the bottom of the wire rope 6, descends synchronously under the action of gravity. The limiting sliders 17 installed on both sides of the limiting counterweight 16 slide smoothly along the sliding groove 2 15, forming a double guiding constraint. The gravity of the limiting counterweight 16 provides continuous tension to the wire rope 6, keeping it taut at all times. Limiting sliders 17 are fixedly connected to both sides of the outer wall of the limiting counterweight 16. Mounting plates 14 are fixedly connected to both sides of the bottom of the mounting block 2 5. The two mounting plates 14 have sliding grooves 2 15 on the side closest to each other, and the limiting sliders 17 slide within the sliding grooves 2 15, cooperating with the limiting counterweight 16. The precise sliding of the slider 17 within the slide groove 15 effectively prevents the steel wire rope 6 from slackening or shifting. The steel wire rope 6 is fixedly connected to the top outer wall of the mounting block 4, and the limiting plate 7 abuts against the mounting block 4. When the double-layer window sash 2 is closed, the push-pull rod 12 resets, causing the U-shaped slider 8 to move upward, and the steel wire rope 6 to tighten and retract. This synchronously drives the limiting counterweight block 16 and the limiting slider 17 to reset, effectively preventing the steel wire rope 6 in the installation rope buckle from getting stuck in the rotation gap between the window mounting frame 1 and the double-layer window sash 2 when the double-layer window sash 2 is closed or opened. The upper and lower sides of the double-layer window sash 2 are rotatably connected to the auxiliary rod 18, and the side of the auxiliary rod 18 away from the double-layer window sash 2 is rotatably connected to the window mounting frame 1.
[0026] During the opening and closing of the window sash, the auxiliary rod 18 is linked with the side mounting base 13 and the push-pull rod 12. When opening, the auxiliary rod 18 rotates synchronously with the window sash, and the movement of the hinge points at both ends constrains the horizontal displacement of the window sash. Combined with the tilting movement of the push-pull rod 12, it ensures that the window sash remains stable. When closing, the reset rotation of the auxiliary rod 18 guides the window sash back to its position. At the same time, the auxiliary rod 18 and the limiting counterweight 16 at the bottom of the wire rope 6, during the closing of the double-layer window sash 2, the wire rope 6 drives the limiting counterweight 16 to retract upward. Its top will closely abut against the bottom of the second mounting block 5, preventing the limiting counterweight 16 from continuing to rise and avoiding it from detaching from the second mounting block 5 due to excessive rise. The limiting slider 17 cooperates with each other. The former controls the horizontal movement of the window sash, and the latter two constrain the vertical trajectory of the wire rope 6. Together, they construct a stable support in the horizontal and vertical directions, effectively enhancing the guiding stability of the window sash opening and closing, and also preventing the window sash from falling to a certain extent.
[0027] The working principle of this utility model is as follows: When the double-layer window sash 2 is opened, the mounting base 13 installed on its side will drive the push-pull rod 12 to tilt. The other end of the push-pull rod 12 rotates flexibly around the circular connecting block 10 through the rotating rod 11, driving the circular connecting block 10 and the rotating rod 9 to rotate synchronously in the U-shaped slider 8, realizing the multi-angle flexible displacement of the push-pull rod 12. As the push-pull rod 12 tilts, the U-shaped slider 8 slides down along the slide groove 3, synchronously pulling the steel wire rope 6 down. The limiting plate 7 on the outside of the steel wire rope 6 slides accordingly until it abuts against the mounting block 4 for limiting.
[0028] At the same time, the limiting counterweight 16 fixedly connected to the bottom of the wire rope 6 descends synchronously under the action of gravity, and the limiting sliders 17 installed on both sides slide smoothly along the second slide groove 15, forming a double guiding constraint. The gravity of the limiting counterweight 16 provides continuous tension to the wire rope 6, keeping it taut at all times. Combined with the precise sliding of the limiting sliders 17 in the second slide groove 15, it effectively prevents the wire rope 6 from slack or deviating.
[0029] When the double-layer window sash 2 is closed, the push-pull rod 12 resets, causing the U-shaped slider 8 to move upward, and the steel wire rope 6 to tighten and retract. This simultaneously drives the limit counterweight 16 and the limit slider 17 to reset. Through this multi-limit and guide linkage structure composed of components such as the mounting base 13, push-pull rod 12, U-shaped slider 8, and steel wire rope 6, the steel wire rope 6 in the mounting rope buckle can be effectively prevented from getting stuck in the rotation gap between the window mounting frame 1 and the double-layer window sash 2 when the double-layer window sash 2 is closed or opened, significantly improving the smoothness of the window sash opening and closing and the structural stability.
[0030] 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 fall-prevention locking structure for a double-layer outward-opening window sash, comprising a window mounting frame (1) and a double-layer window sash (2) rotatably connected to one side of the window mounting frame (1), characterized in that: A sliding groove (3) is provided on the inner wall of the window mounting frame (1) near the double-layer window sash (2). An installation block (4) is installed between the sliding groove (3). An installation block (5) is fixedly connected to the lower part of the side where the double-layer window sash (2) is rotatably connected to the window mounting frame (1). A steel wire rope (6) passes through and slides between the middle of the installation block (4) and the installation block (5). A U-shaped slider (8) is slidably connected to the upper part of the inner cavity of the sliding groove (3). A steel wire rope (6) passes through the middle of the U-shaped slider (8). A rotating rod (9) is connected to the rotating rod (9) and a circular connecting block (10) is fixedly connected to the middle of the outer wall of the rotating rod (9). A rotating rod (11) is connected to the rotating rod (10) through and rotating on one side of the circular connecting block (10). A push-pull rod (12) is fixedly connected to the outer wall of the rotating rod (11). A mounting base (13) is fixedly connected to the upper part of the double-layer window sash (2) near the window mounting frame (1). The side of the push-pull rod (12) away from the rotating rod (11) is rotatably connected to the mounting base (13).
2. The anti-fall locking structure for a double-layer outward-opening window sash according to claim 1, characterized in that: The bottom of the wire rope (6) passes through the second mounting block (5) and is fixedly connected to the limiting counterweight (16), and the top of the limiting counterweight (16) abuts against the second mounting block (5).
3. The anti-fall locking structure for a double-layer outward-opening window sash according to claim 2, characterized in that: Limiting sliders (17) are fixedly connected to both sides of the outer wall of the limiting counterweight (16).
4. The anti-fall locking structure for a double-layer outward-opening window sash according to claim 1, characterized in that: Mounting plates (14) are fixedly connected to both sides of the bottom of the mounting block 2 (5).
5. The anti-fall locking structure for a double-layer outward-opening window sash according to claim 4, characterized in that: Both mounting plates (14) have a second groove (15) on one side close to each other, and the limiting slider (17) slides in the second groove (15).
6. The anti-fall locking structure for a double-layer outward-opening window sash according to claim 1, characterized in that: The double-layer window sash (2) is rotatably connected to both the upper and lower sides by auxiliary rods (18), and the side of the auxiliary rod (18) away from the double-layer window sash (2) is rotatably connected to the window mounting frame (1).
7. The anti-fall locking structure for a double-layer outward-opening window sash according to claim 1, characterized in that: The wire rope (6) is fixedly connected to the top outer wall of the mounting block (4) with a limiting plate (7), and the limiting plate (7) abuts against the mounting block (4).