Precise locking device for metal doors and windows

By designing a precision locking device for metal doors and windows, the problem of repeated disassembly and assembly of sliding rail parts has been solved, achieving stable sliding of the window frame and improving safety. It is suitable for shopping malls, public areas and children's activity areas.

CN224228447UActive Publication Date: 2026-05-12HUBEI ZHICHEN DOOR & WINDOW TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI ZHICHEN DOOR & WINDOW TECH CO LTD
Filing Date
2025-04-15
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing technologies, sliding rail components limit the window opening range and require repeated disassembly and reassembly, making them easily touched and increasing the management and care burden. This poses a safety hazard, especially in shopping malls, public areas, and children's activity areas.

Method used

Design a precision locking device for metal doors and windows, including a guide rail, window frame, glass, guide structure, push component, locking component, blocking component, and protective component. The guide structure guides the sliding, the locking component restricts the movement of the window frame, the blocking component controls the locking state, and the protective component prevents unauthorized personnel from operating it.

Benefits of technology

It enables smooth sliding of the window frame, improves safety and stability, reduces management burden, prevents accidental opening, and is suitable for shopping malls, public areas and children's activity areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a precision lock catch device of metal door and window, including: mounting base, guide rail, window frame, glass, the guide rail is mounted in the mounting base, the both ends of window frame are in sliding connection with the outside of guide rail, the glass is arranged in the window frame, and the window frame is in sliding connection with the outside of the guide rail. The precise locking device of the metal door and window comprises a window frame, a guide rail is arranged in the window frame, a guide structure used for guiding internal parts to slide is arranged in the window frame, a pushing assembly is arranged in the guide structure, and a locking assembly used for limiting the moving range of the window frame is arranged outside the pushing assembly. Smooth sliding of the window frame is achieved, and the glass achieves lighting and protection functions. The guide structure guides the pushing assembly to slide stably, the locking assembly limits movement of the window frame, and safety is improved. The blocking assembly can limit the working state of the locking assembly, and the stability is further enhanced through the protection assembly.
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Description

Technical Field

[0001] This utility model relates to the field of door and window locking technology, and in particular to a precision locking device for metal doors and windows. Background Technology

[0002] Sliding doors and windows are widely used in commercial buildings and residential buildings, and the hardware for sliding doors and windows is also widely used. As an important locking hardware component on sliding doors and windows, the lock is related to the personal space freedom and personal and property safety of each user.

[0003] Currently, in shopping malls, public areas, and venues where children play, window safety features often rely on mechanisms installed on sliding tracks to limit the window's opening range. However, each adjustment to the opening range requires tedious unscrewing of these mechanisms, followed by reinstallation after adjustment. Furthermore, these mechanisms are exposed and easily accessible, posing a risk of falls should the window open accidentally. This not only increases the management burden on venue staff but also significantly increases the supervision pressure on parents in areas with children.

[0004] Therefore, it is necessary to provide a precision locking device for metal doors and windows to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides a precision locking device for metal doors and windows, which solves the current problem that shopping malls, public areas and children's activity areas rely on sliding rail parts to restrict window opening and adjustment, requiring repeated disassembly and assembly, and the parts are easily touched, increasing the management and care burden.

[0006] To solve the above-mentioned technical problems, the present invention provides a precision locking device for metal doors and windows, comprising: a mounting base, a guide rail, a window frame, and glass. The guide rail is installed inside the mounting base, and both ends of the window frame are slidably connected to the outside of the guide rail. The glass is disposed inside the window frame, and the inside of the window frame is provided with a guide structure for guiding the sliding of internal parts. The inside of the guide structure is provided with a pushing component, and the outside of the pushing component is provided with a locking component for limiting the movement range of the window frame. The outside of the window frame is provided with a blocking component and a protective component.

[0007] Preferably, the guide structure includes a displacement groove and an operating groove. The displacement groove is disposed inside the window frame, and the operating groove is disposed on the inner wall of the displacement groove. The two ends of the window frame are provided with receiving grooves for storing locking components.

[0008] Preferably, the pushing assembly includes a pushing member and a connecting rod. The outside of the pushing member is slidably connected to the inside of the operating groove. One end of the connecting rod is fixedly connected to the outside of the pushing member. The outside of the pushing member is provided with a grinding block for increasing hand friction. The inside of the displacement groove is provided with a limiting block. The outside of the connecting rod is slidably connected to the inside of the limiting block. The connecting rod passes through the limiting block and extends to its outside. A vertical rod is slidably connected to the inside of the limiting block. The vertical rod passes through the limiting block and extends to its outside. One end of the vertical rod is fixedly connected to a limiting structure. An elastic element for achieving a reset effect is provided on the outside of the vertical rod. The other end of the connecting rod is fixedly connected to a pressure-applying member. The other end of the vertical rod is fixedly connected to the outside of the pressure-applying member.

[0009] Preferably, the locking component includes a concave groove and straight teeth. The concave groove is disposed at both ends inside the mounting base. The concave groove is provided with triangular tooth blocks for achieving the locking effect. The straight teeth are installed at the output end of the pressure application component, and the outer surface of the straight teeth meshes with the outer surface of the triangular tooth blocks.

[0010] Preferably, the blocking assembly includes a movable slot and a moving connector. The movable slot has the front of the window frame. The moving connector is installed inside the movable slot. A circular block is movably connected to the outer surface of the moving connector. A semi-circular notch for controlling the locking state is opened on the outside of the circular block. A stop bar block is fixedly connected to the outside of the connecting rod.

[0011] Preferably, the protective component includes a control slot and a shield. The control slot is located on the front of the window frame, and the exterior of the shield is hinged to the interior of the control slot. One side of the shield is provided with a door lock to prevent unauthorized personnel from opening it, and the other side of the shield is provided with a semi-circular colloid.

[0012] Compared with related technologies, the precision locking device for metal doors and windows provided by this utility model has the following advantages:

[0013] Beneficial effects:

[0014] This invention provides a precision locking device for metal doors and windows. Through the cooperation of a guide rail and a mounting base, the window frame slides smoothly, allowing the glass to perform its functions of light transmission and protection. A guiding structure guides the stable sliding of the pushing component, while a locking component restricts the movement of the window frame, enhancing safety. A blocking component limits the working state of the locking component, and a protective component further enhances stability. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the precision locking device for metal doors and windows provided by this utility model;

[0016] Figure 2for Figure 1 The diagram shown is a front view.

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0018] Figure 4 for Figure 1 The diagram shows the internal structure.

[0019] Figure 5 for Figure 4 The enlarged schematic diagram of section B is shown below;

[0020] Figure 6 for Figure 4 The enlarged schematic diagram of section C is shown below;

[0021] Figure 7 for Figure 1 The front sectional view shown is illustrated.

[0022] Figure 8 for Figure 1 The side sectional view shown is shown below;

[0023] Figure 9 for Figure 8 The enlarged schematic diagram of part D is shown below;

[0024] Figure 10 for Figure 8 The enlarged schematic diagram of part E is shown.

[0025] The diagram is labeled as follows: 1. Mounting base, 11. Guide rail, 12. Window frame, 13. Glass, 2. Guide structure, 21. Displacement groove, 22. Operating groove, 23. Receiving groove, 3. Pushing assembly, 31. Pushing component, 32. Connecting rod, 33. Grinding block, 34. Limiting block, 35. Vertical rod, 36. Limiting structure, 37. Elastic element, 38. Pressure application component, 4. Locking assembly, 41. Concave groove, 42. Straight tooth, 43. Triangular tooth block, 5. Blocking assembly, 51. Movable slot, 52. Moving connector, 53. Round block, 54. Semi-circular notch, 55. Stop bar block, 6. Protective assembly, 61. Control groove, 62. Shielding component, 63. Door lock, 64. Semi-circular colloid. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8, Figure 9 and Figure 10 ,in, Figure 1 A schematic diagram of a preferred embodiment of the precision locking device for metal doors and windows provided by this utility model; Figure 2 for Figure 1 The diagram shown is a front view. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 1 The diagram shows the internal structure. Figure 5 for Figure 4 The enlarged schematic diagram of section B is shown below; Figure 6 for Figure 4 The enlarged schematic diagram of section C is shown below; Figure 7 for Figure 1 The front sectional view shown is illustrated. Figure 8 for Figure 1 The side sectional view shown is shown below; Figure 9 for Figure 8 The enlarged schematic diagram of part D is shown below; Figure 10 for Figure 8 The enlarged schematic diagram of part E is shown. The precision locking device for metal doors and windows includes: a mounting base 1, a guide rail 11, a window frame 12, and glass 13. The guide rail 11 is installed inside the mounting base 1. Both ends of the window frame 12 are slidably connected to the outside of the guide rail 11. The glass 13 is disposed inside the window frame 12. The window frame 12 is provided with a guide structure 2 for guiding the sliding of internal parts. The guide structure 2 is provided with a pushing component 3. The outside of the pushing component 3 is provided with a locking component 4 for limiting the movement range of the window frame 12. The outside of the window frame 12 is provided with a blocking component 5 and a protective component 6.

[0028] The guide structure 2 includes a displacement groove 21 and an operation groove 22. The displacement groove 21 is located inside the window frame 12, and the operation groove 22 is located on the inner wall of the displacement groove 21. The two ends of the window frame 12 are provided with receiving grooves 23 for storing the locking components 4.

[0029] The displacement groove 21 provides a precise sliding trajectory for the subsequent movement of the pushing component 3, ensuring that the pushing component 3 can move stably inside the window frame 12. The operating groove 22 not only facilitates the reset and movement of the pushing component 3, but also limits the sliding range of the pushing component 3, effectively preventing excessive movement. The receiving groove 23 provides a dedicated storage space for the locking component 4. When the pushing component 3 moves, it will cause the locking component 4 to slide out of the window frame 12. At this time, the locking component 4 will function, preventing the window frame 12 from moving and achieving a locked state. When the pushing component 3 resets, the locking component 4 will slide into the receiving groove 23, releasing the lock on the window frame 12, at which point the window frame 12 can move freely.

[0030] Among them, the guide structure 2 includes, but is not limited to, T-shaped grooves, dovetail grooves, and rectangular grooves;

[0031] In this embodiment, the guide structure 2 is preferably a rectangular groove. Because in the actual application scenario of this window frame 12, the precision requirements for the guide structure 2 are not extremely high. The simple structure of the rectangular groove is not only easy to process and manufacture, which can effectively reduce production costs, but also more convenient in terms of installation and maintenance, and can meet the basic functional requirements of the window frame 12 for the guide structure 2 in this embodiment.

[0032] The pushing assembly 3 includes a pushing member 31 and a connecting rod 32. The outside of the pushing member 31 is slidably connected to the inside of the operating groove 22. One end of the connecting rod 32 is fixedly connected to the outside of the pushing member 31. The outside of the pushing member 31 is provided with a grinding block 33 for increasing hand friction. The inside of the displacement groove 21 is provided with a limiting block 34. The outside of the connecting rod 32 is slidably connected to the inside of the limiting block 34. The connecting rod 32 passes through the limiting block 34 and extends to its outside. A vertical rod 35 is slidably connected to the inside of the limiting block 34. The vertical rod 35 passes through the limiting block 34 and extends to its outside. One end of the vertical rod 35 is fixedly connected with a limiting structure 36. The outside of the vertical rod 35 is provided with an elastic element 37 for achieving a reset effect. The other end of the connecting rod 32 is fixedly connected with a pressure applying member 38. The other end of the vertical rod 35 is fixedly connected to the outside of the pressure applying member 38.

[0033] By pushing or pulling the pusher 31 inside the operating groove 22, the pusher 31 slides within the operating groove 22. The friction of the hand is increased by the grinding block 33, ensuring stable and controllable pushing and pulling operations. When the pusher 31 moves, the connecting rod 32, which is fixedly connected to it, moves synchronously. The connecting rod 32 slides within the limiting block 34, which guides the connecting rod 32 along a predetermined trajectory, preventing deviation. Simultaneously, the connecting rod 32 drives the pressure-applying component 38 connected to it, causing the pressure-applying component 38 to move the locking assembly 4. During this process, the movement of the connecting rod 32 also causes the vertical rod 35 to slide within the limiting block 34. A limiting structure 36 connected to one end of the vertical rod 35 prevents the vertical rod 35 from detaching from the limiting block 34. An elastic element 37 on the outside of the vertical rod 35 allows it to return to its original shape when the external force is removed, pushing the vertical rod 35 back to its original position, thus returning the pusher 31 to its original position in the operating groove 22.

[0034] Among them, the elastic element 37 includes, but is not limited to, helical springs, disc springs, and rubber elastomers;

[0035] In this embodiment, the elastic element 37 is preferably a helical spring. This is because it has a simple structure, low cost, and can provide suitable elastic force in this door and window lock structure, ensuring the normal operation and reliable reset of the locking assembly 4.

[0036] The locking component 4 includes a concave groove 41 and a straight tooth 42. The concave groove 41 is disposed at both ends inside the mounting base 1. The concave groove 41 is provided with a triangular tooth block 43 for achieving the locking effect. The straight tooth 42 is installed at the output end of the pressure application component 38. The outer surface of the straight tooth 42 meshes with the outer surface of the triangular tooth block 43.

[0037] When the pusher 31 is pushed, the pressure-applying component 38 moves upward, causing the straight teeth 42 on the pressure-applying component 38 to mesh tightly with the triangular tooth block 43. At this time, the window frame 12 is locked and cannot move. When the pusher 31 moves downward, the straight teeth 42 on the pressure-applying component 38 separate from the triangular tooth block 43, the locked state of the window frame 12 is released, and it can move freely.

[0038] Among them, the pressure-applying component 38 includes, but is not limited to, square metal, rubber blocks, and plastic blocks;

[0039] In this embodiment, the pressure-applying component 38 is preferably a square metal block. This is because, in the application scenario of this embodiment, the pressure-applying component 38 needs to have high strength and rigidity to ensure that it can stably push the straight teeth 42 and the triangular teeth 43 to mesh tightly, thereby achieving a reliable locking function.

[0040] The blocking assembly 5 includes a movable slot 51 and a moving connector 52. The movable slot 51 has the front of the window frame 12. The moving connector 52 is installed inside the movable slot 51. A circular block 53 is movably connected to the outer surface of the moving connector 52. A semi-circular notch 54 for controlling the locking state is opened on the outside of the circular block 53. A stop bar block 55 is fixedly connected to the outside of the connecting rod 32.

[0041] When the straight teeth 42 on the pressure-applying component 38 are tightly engaged with the triangular toothed block 43, and the window frame 12 is in the locked state, rotate the circular block 53 so that the semi-circular notch 54 faces outward. Due to the elastic deformation of the elastic element 37 between the limiting block 34 and the pressure-applying component 38, the connecting rod 32 slides immediately, causing the stop bar block 55 to move synchronously. If the semi-circular notch 54 does not coincide with the stop bar block 55, the stop bar block 55 will be blocked by the circular block 53. However, when the semi-circular notch 54 coincides with the stop bar block 55, the stop bar block 55 can slide smoothly, and the connecting rod 32 will slide downward quickly, causing the straight teeth 42 to separate from the triangular toothed block 43, releasing the lock on the window frame 12, and allowing the window frame 12 to slide.

[0042] Among them, the motion connecting component 52 includes, but is not limited to, universal joints, couplings, and rotating shafts;

[0043] In this embodiment, the motion connector 52 is preferably a rotating shaft. Because in current mechanical structures, components need to rotate stably around a fixed axis, and a rotating shaft can precisely provide this rotational support, ensuring the stability and accuracy of power transmission. Furthermore, the rotating shaft has a simple structure, low cost, and is relatively easy to install and maintain.

[0044] The protective component 6 includes a control slot 61 and a shielding member 62. The control slot 61 is located on the front of the window frame 12. The exterior of the shielding member 62 is hinged to the interior of the control slot 61. A door lock 63 for preventing non-operators from opening the shielding member 62 is provided on one side of the shielding member 62, and a semi-circular colloid 64 is provided on the other side of the shielding member 62.

[0045] The control slot 61 of the protective component 6 is located on the front of the window frame 12, and supports the shield 62 through a hinge, allowing the shield 62 to open and close flexibly. When the shield 62 is closed, it can block dust and rainwater, and the semi-circular colloid 64 can be inserted into the semi-circular notch 54 to prevent the round block 53 from loosening. The door lock 63 installed on the outside of the shield 62 can prevent unauthorized personnel from opening it.

[0046] Among them, shielding component 62 includes, but is not limited to, shielding plate, protective cover, and protective cover plate;

[0047] In this embodiment, the shielding member 62 is preferably a protective cover plate. The protective cover plate has good rigidity and stability, and can effectively resist external impacts, dust and liquid intrusion. At the same time, its installation method is simple and can be tightly integrated with the surrounding structure.

[0048] The working principle of the precision locking device for metal doors and windows provided by this utility model is as follows: First, when it is necessary to operate the door or window, the pushing component 3 slides inside the guide structure 2 under the guidance of the guide structure 2. The sliding of the pushing component 3 is the starting action of the entire device, providing power for the realization of subsequent functions. Then, the movement of the pushing component 3 affects the working state of the locking component 4. When the pushing component 3 moves upward, the locking component 4 will enter the locked state, at which time the window frame 12 is restricted and cannot move; at the same time, the rotating blocking component 5 controls the locking state of the locking component 4. When it is necessary to move the window frame 12, rotating the blocking component 5 in the opposite direction will reset the pushing component 3, thereby unlocking the locking component 4. Finally, the protective component 6 plays a protective role, preventing unauthorized personnel from operating the entire device.

[0049] Compared with related technologies, the precision locking device for metal doors and windows provided by this utility model has the following advantages:

[0050] Beneficial effects:

[0051] This utility model provides a precision locking device for metal doors and windows. Through the cooperation of the guide rail 11 and the mounting base 1, the window frame 12 slides smoothly, allowing the glass 13 to perform its functions of light transmission and protection. The guide structure 2 guides the pushing component 3 to slide stably, while the locking component 4 restricts the movement of the window frame 12, improving safety. The blocking component 5 limits the working state of the locking component 4, and the protective component 6 further enhances stability.

[0052] 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 precision locking device for metal doors and windows, characterized in that, include: The installation includes a mounting base, guide rails, a window frame, and glass. The guide rails are installed inside the mounting base. Both ends of the window frame are slidably connected to the outside of the guide rails. The glass is placed inside the window frame. The window frame has a guide structure inside to guide the sliding of internal parts. The guide structure has a pushing component inside. The pushing component has a locking component outside to limit the movement range of the window frame. The window frame has a blocking component and a protective component outside.

2. The precision locking device for metal doors and windows according to claim 1, characterized in that, The guide structure includes a displacement groove and an operating groove. The displacement groove is located inside the window frame, and the operating groove is located on the inner wall of the displacement groove. The two ends of the window frame are provided with receiving grooves for storing locking components.

3. The precision locking device for metal doors and windows according to claim 2, characterized in that, The pushing assembly includes a pushing member and a connecting rod. The outside of the pushing member is slidably connected to the inside of the operating groove. One end of the connecting rod is fixedly connected to the outside of the pushing member. The outside of the pushing member is provided with a grinding block for increasing hand friction. The inside of the displacement groove is provided with a limiting block. The outside of the connecting rod is slidably connected to the inside of the limiting block. The connecting rod passes through the limiting block and extends to its outside. A vertical rod is slidably connected to the inside of the limiting block. The vertical rod passes through the limiting block and extends to its outside. One end of the vertical rod is fixedly connected to a limiting structure. An elastic element for achieving a reset effect is provided on the outside of the vertical rod. The other end of the connecting rod is fixedly connected to a pressure-applying member. The other end of the vertical rod is fixedly connected to the outside of the pressure-applying member.

4. The precision locking device for metal doors and windows according to claim 1, characterized in that, The locking component includes a concave groove and straight teeth. The concave groove is disposed at both ends inside the mounting base. The concave groove is provided with triangular tooth blocks for achieving the locking effect. The straight teeth are installed at the output end of the pressure application component, and the outer surface of the straight teeth meshes with the outer surface of the triangular tooth blocks.

5. The precision locking device for metal doors and windows according to claim 3, characterized in that, The blocking assembly includes a movable slot and a moving connector. The movable slot has the front of the window frame. The moving connector is installed inside the movable slot. A circular block is movably connected to the outer surface of the moving connector. A semi-circular notch for controlling the locking state is opened on the outside of the circular block. A stop bar block is fixedly connected to the outside of the connecting rod.

6. The precision locking device for metal doors and windows according to claim 1, characterized in that, The protective assembly includes a control slot and a shield. The control slot is located on the front of the window frame. The exterior of the shield is hinged to the interior of the control slot. One side of the shield is provided with a door lock to prevent unauthorized personnel from opening it. The other side of the shield is provided with a semi-circular colloid.