Height adjustable aluminium alloy hinge for garage door
Patent Information
- Application Number
- CN202522298275.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-30
AI Technical Summary
[0002]随着经济社会发展，家庭汽车保有量逐步提升，家庭私人车库的使用越来越多，一般车库门多采用可伸缩结构，车库门由多个门扇组合，门扇之间采用铰链连接成一体，传统铰链大多用镀锌钢板冲压轴套支架配合钢制轴导轮，其缺点是：负荷承载强度低，容易变形生锈，故障率高，导轮轴和轴套之间间隙过大产生噪声，导轮组件高度不可调节，定位精度差，门关闭后在风和外力作用下与门框产生缝隙，导致密封不良和安全隐患
[0006]The beneficial effects of this utility model are as follows: This utility model includes two aluminum alloy hinge fixing plates, a screw height adjustment assembly, a guide wheel, and a guide wheel movable bracket. It features high load-bearing strength, resistance to deformation under extreme conditions, corrosion resistance, rust resistance, long service life, and maintenance-free operation. The guide wheel and guide wheel movable bracket are connected by a graphite self-lubricating bushing, which is self-lubricating, quiet, long-lasting, and maintenance-free. The screw height adjustment assembly includes an inverted L-shaped adjustment bracket, a slide rail, a stamped sliding bracket, a screw support seat, a screw, and a screw nut. The screw nut, screw, and screw support seat form a height-adjustable screw height adjuster. The height of the guide wheel is manually adjusted by rotating the screw. It is highly versatile and can adapt to guide rails of different widths, ensuring a seamless fit between the guide wheel and the guide rail for precise positioning. This prevents gaps between the garage door and the door frame after the garage door is closed, ensuring a tight seal between the door and the frame and achieving better sealing and insulation performance.
Smart Images
Figure CN224770019U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a height-adjustable aluminum alloy hinge for garage doors, belonging to the field of hinge technology. Background Technology
[0002] With economic and social development, the number of family cars has gradually increased, and the use of private garages has become more and more common. Garage doors generally adopt a telescopic structure, consisting of multiple door panels connected by hinges. Traditional hinges mostly use galvanized steel plate stamped bushing brackets in conjunction with steel shaft guide wheels. The disadvantages of this are: low load-bearing capacity, easy deformation and rust, high failure rate, excessive gap between the guide wheel shaft and bushing causing noise, non-adjustable height of the guide wheel assembly, poor positioning accuracy, and gaps between the door and the door frame under wind and external forces after the door is closed, leading to poor sealing and safety hazards. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a height-adjustable aluminum alloy hinge for garage doors.
[0004] The technical solution of this utility model is as follows: A height-adjustable aluminum alloy hinge for garage doors, comprising a first aluminum alloy hinge fixing plate and a second aluminum alloy hinge fixing plate with connecting holes, characterized in that the first aluminum alloy hinge fixing plate and the second aluminum alloy hinge fixing plate are movably connected through a hinge fixing plate connecting shaft assembly; a screw height adjustment assembly is connected to the second aluminum alloy hinge fixing plate, the screw height adjustment assembly is movably connected to a guide wheel movable bracket, and the guide wheel movable bracket has a rotatable guide wheel; the screw height adjustment assembly includes an inverted L-shaped adjustment bracket connected to the second aluminum alloy hinge fixing plate, two slide rails are symmetrically provided on the vertical plate of the adjustment bracket, the guide wheel movable bracket is movably connected to a stamped sliding bracket through a boss nut and bolt passing through the slide rails, the boss of the boss nut is engaged with the stamped sliding bracket; a horizontal plate at the upper end of the adjustment bracket is connected to a screw support seat, a screw is inserted into the center hole of the screw support seat, and the screw is threadedly connected to a screw nut.
[0005] Furthermore, the hinge fixing plate connecting shaft assembly includes two first hinge fixing rings connected to the front end and middle of the first aluminum alloy hinge fixing plate, and two second hinge fixing rings connected to the rear end and middle of the second aluminum alloy hinge fixing plate. The first hinge fixing rings and the second hinge fixing rings are symmetrically arranged at intervals. The first hinge fixing rings and the second hinge fixing rings are connected to a rotating shaft through an oil-impregnated ball bearing. Both ends of the rotating shaft are provided with limit snap rings and are connected to bearing protection end caps by screws. A nylon gasket is provided between the first hinge fixing rings and the second hinge fixing rings.
[0006] The beneficial effects of this utility model are as follows: This utility model includes two aluminum alloy hinge fixing plates, a screw height adjustment assembly, a guide wheel, and a guide wheel movable bracket. It features high load-bearing strength, resistance to deformation under extreme conditions, corrosion resistance, rust resistance, long service life, and maintenance-free operation. The guide wheel and guide wheel movable bracket are connected by a graphite self-lubricating bushing, which is self-lubricating, quiet, long-lasting, and maintenance-free. The screw height adjustment assembly includes an inverted L-shaped adjustment bracket, a slide rail, a stamped sliding bracket, a screw support seat, a screw, and a screw nut. The screw nut, screw, and screw support seat form a height-adjustable screw height adjuster. The height of the guide wheel is manually adjusted by rotating the screw. It is highly versatile and can adapt to guide rails of different widths, ensuring a seamless fit between the guide wheel and the guide rail for precise positioning. This prevents gaps between the garage door and the door frame after the garage door is closed, ensuring a tight seal between the door and the frame and achieving better sealing and insulation performance.
[0007] The hinge fixing plate connecting shaft assembly includes two sets of hinge fixing rings symmetrically spaced apart. The rotating shaft, equipped with a limit spring and a bearing protection end cap, is connected to the internal oil-impregnated ball bearing. Nylon gaskets are provided on the hinge fixing rings. This creates a hinge structure in the aluminum alloy hinge fixing plate that can rotate 180 degrees, ensuring precise, flexible, and noiseless door panel connection, maintenance-free operation, long lifespan, and reliable safety. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an enlarged view of the screw height adjustment component of this utility model; Figure 3 This is an enlarged view of the hinge fixing plate connecting shaft assembly of this utility model; In the diagram: 1. Screw height adjustment assembly; 2. Hinge fixing plate connecting shaft assembly; 3. First aluminum alloy hinge fixing plate; 4. Second aluminum alloy hinge fixing plate; 5. Guide wheel; 6. Guide wheel movable bracket; 11. Screw nut; 12. Screw; 13. Screw support seat; 14. Stamped sliding bracket; 15. Boss nut; 16. Bolt; 17. Slide rail; 18. Adjustment bracket; 21. Nylon gasket; 22. Oil-impregnated ball bearing; 23. Bearing protection end cap; 24. Rotating shaft; 25. Limiting snap ring; 26. First hinge fixing ring; 27. Second hinge fixing plate ring. Detailed Implementation
[0009] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings: like Figure 1As shown, a height-adjustable aluminum alloy hinge for garage doors includes a first aluminum alloy hinge fixing plate 3 and a second aluminum alloy hinge fixing plate 4, both with evenly spaced connecting holes. Made of aluminum alloy, it is corrosion-resistant and rust-resistant. During use, it is installed inside two independent door panels, its main function being to connect the separate flip-up door panels into a single unit, allowing multiple door panels to be combined into a complete garage door. The first aluminum alloy hinge fixing plate 3 and the second aluminum alloy hinge fixing plate 4 are connected by a hinge fixing plate connecting shaft assembly 2, forming a foldable hinge. A screw height adjustment assembly 1 is connected to the second aluminum alloy hinge fixing plate 4. The screw height adjustment assembly 1 is movably connected to a guide wheel movable bracket 6. The guide wheel movable bracket 6 is connected to a rotatable guide wheel 5 via a graphite self-lubricating bushing. The graphite self-lubricating bushing is self-lubricating, quiet, maintenance-free, and has a long service life. The guide wheel movable bracket 6 is connected to the screw height adjustment component 1 by two fixing bolts and tightened with nuts, thus binding the guide wheel movable bracket 6 to the screw height adjustment component 1. In use, the nuts on the guide wheel movable bracket 6 are loosened, and the screw in the screw height adjustment component bracket 1 is rotated with a wrench to adjust the height of the guide wheel movable bracket 6 at will, thereby adjusting the height of the guide wheel 5, so that the guide wheel 5 fits the garage door guide rail better, avoiding gaps, ensuring a tight seal between the door and the frame, isolating noise, achieving better sealing and heat insulation performance, and ensuring the airtightness of the garage door even when pushed by strong winds.
[0010] like Figure 2 As shown, the screw height adjustment assembly 1 includes an inverted L-shaped adjustment bracket 18. The lower end of the vertical plate of the adjustment bracket 18 is integrated with the second aluminum alloy hinge fixing plate 4. Two slide rails 17 are symmetrically arranged on the vertical plate of the adjustment bracket 18. The guide wheel movable bracket 6 is movably connected to the stamped sliding bracket 14 through a boss nut 15 and a bolt 16. The boss nut 15 passes through the slide rail 17 and the boss of the boss nut 15 is engaged with the stamped sliding bracket 14. The screw support seat 13 is connected to the slot of the horizontal plate at the upper end of the adjustment bracket 18. The screw 12 is inserted into the center hole of the screw support seat 13. The screw 12 is threadedly connected to the screw nut 11, and the screw nut 11 is connected to the adjustment bracket 18. The screw nut 11, the screw 12, and the screw support seat 13 constitute a height-adjustable screw height adjuster. The screw 12 rotates to adjust the height, and the screw support seat 13 is used to limit and fix the screw 12. The screw nut 11 combined with the stamped sliding bracket 14 can drive the stamped sliding bracket 14 to move. In use, first loosen the two bolts 16 on the back side, then rotate the lead screw 12 from the top. Adjust the vertical position of the stamped sliding bracket 14 in the slide rail 17 through the lead screw 12 height adjuster assembly. The loosened boss nut 15 can drive the guide wheel movable bracket 6 to move up and down at the same time because its boss is engaged with the stamped sliding bracket 14, thereby adjusting the position of the guide wheel 5.
[0011] like Figure 3As shown, the hinge fixing plate connecting shaft assembly 2 includes two first hinge fixing rings 26 connected to the front and middle parts of the first aluminum alloy hinge fixing plate 3, and two second hinge fixing rings 27 connected to the rear and middle parts of the second aluminum alloy hinge fixing plate 4. The first hinge fixing rings 26 and the second hinge fixing rings 27 are symmetrically arranged at intervals. The first hinge fixing rings 26 and the second hinge fixing rings 27 are connected to a rotating shaft 24 through an oil-impregnated ball bearing 22. Both ends of the rotating shaft 24 are provided with limiting springs 25, and are connected to bearing protection end caps 23 by screws. A nylon gasket 21 is provided between the first hinge fixing rings 26 and the second hinge fixing rings 27. The hinge fixing plate connecting shaft assembly 2 connects the first aluminum alloy hinge fixing plates 3 and the second aluminum alloy hinge fixing plates 4 on both sides to form a hinge structure that can rotate 180 degrees.
[0012] It should be understood that any parts not described in detail in this specification belong to the prior art. The above embodiments are merely descriptions of preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and improvements to the technical solutions of this utility model made by those skilled in the art without departing from the spirit of this utility model should fall within the protection scope defined by the claims of this utility model.
Claims
1. A height-adjustable aluminum alloy hinge for garage doors, comprising a first aluminum alloy hinge fixing plate and a second aluminum alloy hinge fixing plate with connecting holes, characterized in that... The first aluminum alloy hinge fixing plate and the second aluminum alloy hinge fixing plate are movably connected through the hinge fixing plate connecting shaft assembly; the second aluminum alloy hinge fixing plate is connected to the screw height adjustment assembly, which is movably connected to the guide wheel movable bracket, and the guide wheel movable bracket is connected to the guide wheel; the screw height adjustment assembly includes an inverted L-shaped adjustment bracket connected to the second aluminum alloy hinge fixing plate, and two slides are symmetrically provided on the vertical plate of the adjustment bracket. The guide wheel movable bracket is movably connected to the stamped sliding bracket through the boss nut and bolt passing through the slides, and the boss of the boss nut is engaged with the stamped sliding bracket; the horizontal plate at the upper end of the adjustment bracket is connected to the screw support seat, and the screw is inserted into the center hole of the screw support seat, and the screw is threadedly connected to the screw nut.
2. The height-adjustable aluminum alloy hinge for garage doors according to claim 1, characterized in that... The hinge fixing plate connecting shaft assembly includes two first hinge fixing rings connected to the front and middle parts of the first aluminum alloy hinge fixing plate, and two second hinge fixing rings connected to the rear and middle parts of the second aluminum alloy hinge fixing plate. The first and second hinge fixing rings are symmetrically arranged at intervals. The first and second hinge fixing rings are connected to a rotating shaft through an oil-impregnated ball bearing. Both ends of the rotating shaft are provided with limit snap rings and are connected to bearing protection end caps by screws. A nylon gasket is provided between the first and second hinge fixing rings.