Automatic windproof positioner for door and window leaf

Abstract

The utility model relates to the technical field of building door and window hardware, especially a door leaf and window sash automatic windproof positioner, solves the problem of difficult maintenance and integral replacement caused by complex structure and embedded design in prior art. A door leaf and window sash automatic windproof positioner, including the frame, the inside center of frame is installed with fixed window, and the inside both sides are slidably connected with mobile window through slide rail, one side of frame is provided with two installation boxes symmetrically, the inner bottom of installation box is connected with the toothed plate, and the inner top is provided with mobile cylinder, and the bottom of mobile cylinder is provided with the limit block matched with toothed plate. The utility model discloses through modularization external structure and slope toothed self -locking mechanism, realizes quick dismounting, partial replacement and stable windproof positioning, and significantly reduces maintenance cost and improves reliability.

Description

Technical Field

[0001] This utility model relates to the field of building door and window hardware technology, and in particular to an automatic windproof positioning device for door and window sashes. Background Technology

[0002] In building door and window systems, door and window sashes serve as crucial interfaces for interaction between indoor and outdoor environments. Their opening and closing stability directly impacts safety, comfort, and building energy consumption control. Especially in high-rise buildings, coastal areas, or environments with strong winds, unsecured door or window sashes can easily sway violently and impact the frame, generating noise, accelerating hardware wear, and potentially causing safety accidents such as broken glass and component detachment. To address this issue, automatic windproof positioning devices for door and window sashes have emerged—intelligent hardware devices that automatically lock the opening angle of doors and windows after they are opened, preventing accidental closure or shaking due to wind. Combining positioning, windproofing, and cushioning functions, they have become a key component in the safety design of modern building doors and windows.

[0003] In the prior art, such as the invention patent CN 109025564 A, an automatic windproof positioning device for door and window sashes is disclosed. It includes a body with a cavity inside that simulates the space of a door or window. Rotating grooves are symmetrically arranged on the left and right sides of the cavity. A rotating shaft and a sealing plate are installed in the rotating grooves. The opening angle is automatically locked by the engagement of a ratchet and a locking block to prevent the door or window sash from rebounding or shaking in strong winds. At the same time, in the closed state, a locking block achieves secondary locking to prevent accidental opening. While the solution achieves arbitrary angle positioning and strong wind protection, its internal structure is highly complex, containing multiple precision-fitting rotating grooves, ratchet mechanisms, locking blocks, and linkage clamping components. This not only results in high manufacturing costs but also significant drawbacks in practical use: the linkage of multiple components relies on high-precision assembly, and if any part (such as the pawl or locking block) fails due to long-term stress fatigue or foreign object intrusion, the entire positioning function will be paralyzed. Since the core mechanism is completely embedded inside the body and lacks modular design, once a fault occurs, it is difficult for users or maintenance personnel to quickly disassemble, diagnose, or replace the damaged parts, often requiring the entire positioner to be replaced, resulting in high maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic windproof positioning device for doors and windows, which solves the problem in the existing technology where multiple components rely on high-precision assembly for linkage. Once a part fails due to long-term stress fatigue or foreign object intrusion, the entire positioning function will be paralyzed. Since the core mechanism is completely embedded inside the body and there is no modular design, once a fault occurs, it is difficult for users or maintenance personnel to quickly disassemble, diagnose or replace the damaged parts, and often the entire positioning device needs to be replaced, resulting in high maintenance costs.

[0005] To achieve the above objectives, this utility model provides an automatic windproof positioning device for door and window sashes, including a frame, a fixed window installed at the center of the frame, and movable windows slidably connected to both sides of the frame via slide rails. Two mounting boxes are symmetrically arranged on one side of the frame. A toothed plate is connected to the bottom of the inner side of each mounting box, and a movable cylinder is provided at the top of the inner side. A limiting block that cooperates with the toothed plate is provided at the bottom of the movable cylinder. Both sides of the limiting block have inclined surfaces that cooperate with the toothed plates. A vertical plate with one end sliding through the bottom of the movable cylinder is connected to the top of the limiting block. A top plate connected to the top of the vertical plate is provided inside the movable cylinder. Both sides of the bottom of the top plate are connected to the bottom of the movable cylinder through elastic structures. An abutment plate is provided at the top of the top plate. An adjusting screw with one end threaded through the top of the movable cylinder is rotatably connected to the top of the abutment plate. The top of one side of the movable cylinder is connected to the side wall of the adjacent movable window through a connecting structure.

[0006] The top end of the adjusting screw is fixedly connected to a handle, and the outer ring of the handle has several anti-slip grooves.

[0007] The elastic structure includes several return springs, one end of which is connected to the bottom of the top plate and the other end is connected to the inner bottom of the moving cylinder.

[0008] The bottom of the contact plate is connected to a rubber pad, and the bottom of the rubber pad contacts the top of the top plate.

[0009] The connecting structure includes a connecting bracket, one end of which is fixedly connected to the side wall of the movable cylinder by bolts, and the other end is fixedly connected to the side wall of the movable window by bolts.

[0010] The top of the mounting box is connected to a top cover, and a through groove adapted to the moving cylinder is opened at the center of the top of the top cover.

[0011] This utility model discloses an automatic windproof positioning device for door and window sashes. Through a modular design, the entire positioning mechanism is integrated into a mounting box on the outside of the frame, avoiding the embedding of complex transmission components into the internal cavities of doors and windows, significantly simplifying the overall structure. The core locking function is achieved by the cooperation of a toothed plate and a limit block with an inclined surface, eliminating the need for multi-stage linkage mechanisms such as ratchet, locking block, and rotating shaft. This greatly reduces the number of parts and assembly precision requirements, lowering manufacturing costs and failure rates. The limit block is connected to the top plate via a vertical plate. The top plate provides a restoring force through an elastic structure, and the pre-tightening force can be infinitely adjusted via an adjusting screw and abutment plate, allowing the device to adapt to different wind conditions or compensate for performance damage after use. The moving cylinder is linked to the moving window through a connecting structure, ensuring that the positioning action is synchronized with the window sash movement, providing sensitive response and reliable locking. Since all key components are arranged in a detachable mounting box, in case of jamming, wear, or failure, the user can quickly remove the mounting box for partial repair or replacement without the need for complete scrapping or disassembling of the door and window system, greatly reducing maintenance costs and downtime. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0014] Figure 2 This is a structural schematic diagram of the movable window and connecting bracket according to an embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram of the top cover and through groove of an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the contact plate and adjusting screw according to an embodiment of the present invention.

[0017] Figure 5 This is a structural schematic diagram of the top plate and vertical plate of an embodiment of this utility model.

[0018] In the diagram: 1. Frame; 2. Sliding window; 3. Mounting box; 4. Fixed window; 5. Connecting bracket; 6. Through groove; 7. Top cover; 8. Toothed plate; 9. Limiting block; 10. Contact plate; 11. Adjusting screw; 12. Inclined surface; 13. Return spring; 14. Top plate; 15. Vertical plate; 16. Moving cylinder. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Example 1 Please see Figure 1-5 As shown, an automatic windproof positioning device for door and window sashes in this embodiment includes a frame 1, a fixed window 4 installed at the center of the interior of the frame 1, and movable windows 2 slidably connected to both sides of the interior via slide rails. Two mounting boxes 3 are symmetrically arranged on one side of the frame 1. A toothed plate 8 is connected to the bottom of the inner side of the mounting box 3, and a movable cylinder 16 is provided at the top of the inner side. A limiting block 9 that cooperates with the toothed plate 8 is provided at the bottom of the movable cylinder 16. An inclined surface 12 that cooperates with the toothed plate is provided on both sides of the limiting block 9. A vertical plate 15 that slides through the bottom of the movable cylinder 16 is connected to the top of the limiting block 9. A top plate 14 that is connected to the top of the vertical plate 15 is provided inside the movable cylinder 16. The bottom sides of the top plate 14 are connected to the bottom of the movable cylinder 16 through an elastic structure. An abutment plate 10 is provided at the top of the top plate 14. An adjusting screw 11 that is threaded through the top of the movable cylinder 16 is rotatably connected to the top of the abutment plate 10. The top of one side of the movable cylinder 16 is connected to the side wall of the adjacent movable window 2 through a connecting structure.

[0021] The automatic windproof positioning device for doors and windows operates as follows: During use, the movable window 2 slides open within the frame 1 via a slide rail. When opened to the desired position, the movable cylinder 16, connected to the side wall of the movable window 2 via a connecting structure, moves synchronously. During movement, the limiting block 9 connected to the bottom of the movable cylinder 16 has its inclined surfaces 12 contacting the teeth on the toothed plate 8. The inclined surfaces 12 guide the limiting block 9 upwards, temporarily disengaging it from the tooth groove, allowing the movable cylinder 16 to continue sliding. When the movable window 2 stops sliding, the limiting block 9 rebounds downwards under the reset action of the elastic structure, and its inclined surfaces 12 pass over the current tooth and engage in the adjacent tooth groove, achieving automatic locking of the movable cylinder 16 and the current position of the movable window 2. This locking process requires no manual intervention, relying solely on the movement and elastic reset of the movable window 2 itself. This system effectively prevents strong winds from pushing the sliding window 2 back or causing it to sway. When the opening angle needs to be adjusted, simply push the sliding window 2 again, and the limiting block 9 will repeat the compression-tooth-locking process to achieve repositioning at any position. If it is necessary to fine-tune the meshing tightness between the limiting block 9 and the toothed plate 8, the adjusting screw 11 can be rotated to move the abutment plate 10 up and down, thereby transmitting pressure through the top plate 14 and the vertical plate 15 to change the preload of the elastic structure and thus adjust the reset force of the limiting block 9. Throughout the process, the mounting box 3 is fixed to one side of the frame 1 as an external independent module. The internal components are clearly laid out and have well-defined functions. During maintenance, only the mounting box 3 needs to be disassembled to inspect or replace the core components such as the toothed plate 8, the limiting block 9, and the sliding cylinder 16 without damaging the frame 1 or the entire window structure.

[0022] Example 2 Please see Figure 1-5 As shown in this embodiment, an automatic windproof positioning device for door and window sashes has a handle fixedly connected to the top of the adjusting screw 11. The outer ring of the handle has several anti-slip grooves. Specifically, by fixing the handle to the top of the adjusting screw 11 and providing several anti-slip grooves on the outer ring of the handle, when the resetting force of the limiting block 9 needs to be adjusted, the operator can directly hold the handle and rotate the adjusting screw 11. The anti-slip grooves increase friction to prevent slipping, achieving the effect of facilitating precise manual adjustment and improving operational comfort and reliability.

[0023] A rubber pad is connected to the bottom of the contact plate 10, and the bottom of the rubber pad contacts the top of the top plate 14. Specifically, by setting the bottom of the contact plate 10 to be connected to the rubber pad and the bottom of the rubber pad to contact the top of the top plate 14, when the adjusting screw 11 presses down on the contact plate 10, the rubber pad plays a role in buffering and flexible force transmission, avoiding wear or stress concentration caused by rigid contact of metal parts, while enhancing the smoothness of preload transmission, thus achieving the effect of extending the service life of the components, improving adjustment accuracy and operational stability.

[0024] Example 3 Please see Figure 1-5 As shown, this embodiment of an automatic windproof positioning device for door and window sashes includes an elastic structure comprising several return springs 13. One end of each return spring 13 is connected to the bottom of the top plate 14, and the other end is connected to the inner bottom of the moving cylinder 16. Specifically, by configuring the elastic structure to include several return springs 13, with one end of each return spring 13 connected to the bottom of the top plate 14 and the other end connected to the inner bottom of the moving cylinder 16, when the limiting block 9 is pushed upward by the teeth of the toothed plate 8, the return spring 13 is stretched and stores energy. After the moving window 2 stops, the return spring 13 releases its elastic force, causing the top plate 14, the vertical plate 15, and the limiting block 9 to quickly return to their original positions and engage with the toothed groove. This achieves the effect of providing a stable return force and ensuring reliable and timely automatic locking action.

[0025] The connecting structure includes a connecting bracket 5. One end of the connecting bracket 5 is fixedly connected to the side wall bolt of the moving cylinder 16, and the other end is fixedly connected to the side wall bolt of the moving window 2. Specifically, by setting the connecting structure to include the connecting bracket 5, with one end of the connecting bracket 5 fixedly connected to the side wall bolt of the moving cylinder 16 and the other end fixedly connected to the side wall bolt of the moving window 2, the sliding displacement of the moving window 2 can be accurately and firmly transmitted to the moving cylinder 16, ensuring that the two move synchronously, achieving the effects of reliable connection, precise transmission, and avoiding loosening or lag.

[0026] The top of the mounting box 3 is connected to a top cover 7. A through groove 6 adapted to the moving cylinder 16 is opened at the center of the top of the top cover 7. Specifically, by connecting the top cover 7 to the top of the mounting box 3 and opening a through groove 6 adapted to the moving cylinder 16 at the center of the top of the top cover 7, the moving cylinder 16 can move freely up and down and horizontally. At the same time, the top cover 7 forms a closed protection for the toothed plate 8, the return spring 13, the limit block 9 and other components inside the mounting box 3, preventing dust, rain or foreign objects from entering. This achieves the effect of improving the environmental adaptability of the device and ensuring the long-term stable operation of the internal mechanism.

[0027] The complete workflow of this automatic windproof positioning device for doors and windows is as follows: During use, the movable window 2 slides open along the inner rail of the frame 1. Its sidewall is rigidly connected to the movable cylinder 16 via the connecting bracket 5, allowing the movable cylinder 16 to move synchronously with the movable window 2. The limiting block 9 at the bottom of the movable cylinder 16 has inclined surfaces 12 on both sides. During sliding, these surfaces contact the teeth on the toothed plate 8 fixed at the bottom inside the mounting box 3. The inclined surfaces 12 guide the limiting block 9 upwards, compressing the vertical plate 15 and the top plate 14, causing the return spring 13 to be stretched and stored. The limiting block 9 temporarily disengages from the toothed groove, allowing continued movement. When the movable window 2 stops sliding, the return spring 13 releases its elasticity, pushing the top plate 14 downwards, causing the vertical plate 15 and the limiting block 9 to rebound. The inclined surface 12 of the limiting block 9 passes the current tooth and engages in the next toothed groove, automatically locking the movable window 2 to its current position, effectively preventing it from retracting or swaying due to strong winds. If the opening angle needs to be readjusted, simply push the movable window 2 again. The limiting block 9 repeats the "compression-tooth-locking" process to achieve stepless positioning at any position. When the locking force needs to be adjusted, the operator can hold the handle at the top of the adjusting screw 11, which has an anti-slip groove on its outer ring, and rotate the adjusting screw 11 to make it move the abutment plate 10 down. The rubber pad at the bottom of the abutment plate 10 flexibly presses against the top of the top plate 14, thereby increasing the pre-compression of the return spring 13 and improving the return force of the limiting block 9. The entire mechanism is encapsulated in two mounting boxes 3 symmetrically arranged on one side of the frame 1. The top of the mounting box 3 is closed by the top cover 7. The center of the top cover 7 has a through groove 6 that matches the moving cylinder 16, which allows the moving cylinder 16 to slide freely and prevents external dust, rainwater or foreign objects from entering the interior. During maintenance, only the top cover 7 or the entire mounting box 3 needs to be removed to inspect, clean or replace the core components such as the toothed plate 8, limiting block 9, return spring 13, and moving cylinder 16. There is no need to disassemble the frame 1 or damage the window structure, making the operation convenient and efficient.

[0028] The detailed beneficial effects of this technical solution are as follows: Frame 1 serves as the overall support structure, with fixed window 4 and sliding movable windows 2 installed inside, forming a basic door and window system; Mounting box 3, as an independent functional module, is symmetrically arranged on the outside of frame 1, realizing the externalization and modularization of the positioning mechanism; Tooth plate 8 is fixed to the bottom of mounting box 3, providing a continuous positioning reference; Moving cylinder 16, as a transmission carrier, is bolted to the side wall of movable window 2 via connecting bracket 5, ensuring synchronous movement; The bottom of limiting block 9 meshes with tooth plate 8, and the inclined surfaces 12 on both sides achieve automatic tooth crossing and locking; Vertical plate 15 connects limiting block 9 and top plate 14, transmitting reset force; Top plate 14 is connected to the inner bottom of moving cylinder 16 via reset springs 13 on both sides, providing stable rebound force; A rubber pad is installed at the bottom of the contact plate 10, which flexibly contacts the top plate 14 to avoid hard metal-to-metal contact. The adjusting screw 11 passes through the top of the moving cylinder 16, and the top is equipped with a handle with anti-slip grooves for easy manual adjustment of the preload. The top cover 7 covers the top of the mounting box 3 through the through groove 6, which protects the internal mechanism without hindering the movement of the moving cylinder 16. The whole system abandons the complex linkage structure of traditional ratchet and locking block, and adopts a pure mechanical self-locking principle of inclined surface over-tooth + spring reset, which is simple in structure and highly reliable. The modular design eliminates the need for whole machine replacement for maintenance, which significantly reduces the cost of use. The rubber pad cushioning and the anti-slip handle design improve the adjustment accuracy and human-machine experience. The closed structure of the top cover 7 and the mounting box 3 enhances the dustproof and waterproof capabilities, making it suitable for harsh environments such as high-rise buildings and coastal areas.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An automatic windproof positioning device for door and window sashes, characterized in that, include: The frame has a fixed window installed at the center of its interior, and movable windows are slidably connected to both sides of its interior via sliding rails. Two mounting boxes are symmetrically arranged on one side of the frame. A toothed plate is connected to the bottom of the inner side of each mounting box, and a movable cylinder is provided at the top of the inner side. A limiting block that cooperates with the toothed plate is provided at the bottom of the movable cylinder. Both sides of the limiting block have inclined surfaces that cooperate with the toothed plates. A vertical plate with one end sliding through the bottom of the movable cylinder is connected to the top of the limiting block. A top plate connected to the top of the vertical plate is provided inside the movable cylinder. Both sides of the bottom of the top plate are connected to the bottom of the movable cylinder through elastic structures. An abutment plate is provided at the top of the top plate. An adjusting screw with one end threaded through the top of the movable cylinder is rotatably connected to the top of the abutment plate. The top of one side of the movable cylinder is connected to the side wall of the adjacent movable window through a connecting structure.

2. The automatic windproof positioning device for doors and windows according to claim 1, characterized in that, A handle is fixedly connected to the top of the adjusting screw, and the outer ring of the handle has several anti-slip grooves.

3. The automatic windproof positioning device for door and window sashes according to claim 1, characterized in that, The elastic structure includes several return springs, one end of which is connected to the bottom of the top plate and the other end is connected to the inner bottom of the moving cylinder.

4. The automatic windproof positioning device for door and window sashes according to claim 2, characterized in that, The bottom of the contact plate is connected to a rubber pad, and the bottom of the rubber pad contacts the top of the top plate.

5. The automatic windproof positioning device for door and window sashes according to claim 3, characterized in that, The connecting structure includes a connecting bracket, one end of which is fixedly connected to the side wall of the movable cylinder by bolts, and the other end is fixedly connected to the side wall of the movable window by bolts.

6. The automatic windproof positioning device for door and window sashes according to claim 5, characterized in that, The top of the mounting box is connected to a top cover, and a through groove adapted to the moving cylinder is opened at the center of the top of the top cover.

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