An out-swinging built-in hinge for wide cavity profiles

Abstract

This invention relates to the field of building door and window technology, and in particular to an outward-opening built-in hinge suitable for wide-cavity profiles. The hinge includes a base plate, a load-bearing rod, a linkage rod, a sliding rod, a first support plate, a second support plate, and a slider. The base plate has a guide groove, in which the slider is placed. One end of the sliding rod is connected to the slider by a rivet. One end of the load-bearing rod and the linkage rod are fixed to the base plate by rivets. A second support plate is stacked on top of the first support plate, with both ends of the second support plate riveted to the load-bearing rod and the linkage rod, respectively. The other end of the sliding rod is riveted to the middle of the linkage rod. This invention has a simple structure, is easy to adjust, and has a strong load-bearing capacity, making it suitable for outward-opening windows with built-in hinges in various wide-cavity profiles.

Description

Technical Field

[0001] This invention relates to the field of building door and window technology, and in particular to an outward-opening built-in hinge suitable for wide-cavity profiles. Background Technology

[0002] In the field of building doors and windows, in order to improve the thermal insulation and wind pressure resistance of doors and windows, door and window profiles are gradually developing towards multi-chamber and wide-cavity designs. Currently, the frame width of some thermally broken aluminum and UPVC profiles has reached 70-80mm. At the same time, in order to improve the water tightness and air tightness of windows, these wide-cavity profiles generally incorporate built-in hardware mounting grooves.

[0003] Traditional outward-opening window friction hinges are mostly designed based on 50-60mm standard profiles, with fixed specifications for bottom groove width, connecting rod length, and load-bearing rod plate thickness, typically 2.0mm to 3.0mm. Applying these standard hinges directly to 70-80mm wide-cavity profiles reveals the following problems: 1. Opening / closing interference and structural sagging: Due to the increased thickness of the wide-cavity window frame, when using traditional hinge sizes, the window sash is prone to physical interference with the outer edge of the window frame during the initial opening phase. If the interference is avoided by extending the load-bearing rod, the long lever arm will cause the traditional 2.0-3.0mm thick load-bearing rod to bear a large bending moment under the weight of the heavy multi-glazed window sash, which can easily lead to component deformation, window sash sagging, or even difficulty in closing.

[0004] 2. After prolonged use, the seal cannot be adjusted due to seal failure. Wide-cavity window sashes are heavy, and wear on hinge components and aging and deformation of the sealing strips can increase the sealing gap between the window sash and frame. Existing standard hinges mostly use a fixed hinge design, which cannot be compensated for in the indoor / outdoor direction, leading to air leakage and water seepage.

[0005] 3. Traditional hinges often use self-tapping screws to penetrate the surface of the profile for fixing. For wide-cavity profiles with complex thermal bridges and drainage chambers, destructive drilling can easily damage the internal waterproofing and thermal insulation structures; at the same time, the traditional single-slat structure suffers concentrated stress when bearing heavy window sashes, which can easily lead to damage to the profile groove.

[0006] Therefore, this application designs an externally opening internal hinge that is specially customized for wide cavity profiles, has high load-bearing capacity, is interference-proof, can be installed without damage, and supports sealed fine-tuning, which meets important practical application needs. Summary of the Invention

[0007] In order to overcome the defects in the application of wide cavity profiles in the prior art, such as insufficient load-bearing capacity, opening interference, unadjustable sealing gap, and easy damage to the profiles during installation, the present invention provides an externally opening internal hinge suitable for wide cavity profiles.

[0008] This invention is achieved through the following technical solution: An outward-opening, internally mounted hinge suitable for wide-cavity profiles includes a base plate, a load-bearing rod, a linkage rod, a sliding rod, a first support plate, a second support plate, and a slider. The base plate has a guide groove in which the slider is slidably placed. One end of the sliding rod is connected to the slider via a rivet. One end of the load-bearing rod and the linkage rod are respectively fixed to the base plate via rivets. The lower end of the first support plate is stacked and fixedly connected to the second support plate, and both ends of the second support plate are riveted to the other ends of the load-bearing rod and the linkage rod, respectively. The other end of the sliding rod is riveted to the middle portion of the linkage rod.

[0009] Furthermore, in order to better realize the present invention, the load-bearing rod is made of 4-6mm plate, the hole spacing L of the rivet points at both ends of the load-bearing rod is lengthened, and a phosphor bronze gasket is provided between the load-bearing rod and the base plate to separate them.

[0010] Furthermore, in order to better realize the present invention, the slider slides in the guide groove of the base plate, and an angle positioning block is placed at the end of the guide groove. The slider slides and abuts against the angle positioning block to limit the maximum opening angle. The length of the angle positioning block is changed according to the opening angle requirement.

[0011] Furthermore, in order to better realize the present invention, a plurality of mounting holes are provided on the base plate, and a positioning hole is provided on the angle positioning block, and the fastener passes through the positioning hole and is fixed on the selected mounting hole.

[0012] Furthermore, in order to better realize the present invention, the adjusting pin riveted to the base plate of the linkage rod is an eccentric structure. Rotating the adjusting pin drives the linkage rod to move in the indoor and outdoor directions to realize the window sealing adjustment.

[0013] Furthermore, in order to better realize the present invention, the second support piece and the first support piece are stacked, the first support piece is L-shaped, the first support piece is inserted into the groove of the fan profile, and the second support piece is attached to the outside of the groove.

[0014] Furthermore, in order to better realize the present invention, a fan-shaped rotating blade is provided on the side of the first support piece, and rotating the fan-shaped rotating blade fixes the first support piece in the fan groove.

[0015] Furthermore, in order to better realize the present invention, frame rotating plates are provided at both ends of the base plate, and tightening screws are screwed onto the frame rotating plates through the base plate. The frame rotating plates have a threaded structure.

[0016] Furthermore, in order to better realize the present invention, a stop pin is provided in the middle of the base plate to limit the movement trajectory of the load-bearing rod; one side of the load-bearing rod has a clearance position, and when the hinge is closed, one end of the load-bearing rod and the linkage rod are placed horizontally.

[0017] Furthermore, in order to better realize the present invention, a stop post is riveted to the end of the base plate, and a notch is provided at the end of the second support plate. After the hinge is fully closed, the stop post locks into the notch.

[0018] The beneficial effects of this invention are: The invention features an eccentric rivet at the end of the linkage rod, which allows for adjustment of the window sash seal; the main load-bearing rod is thickened and lengthened to accommodate windows with wide-cavity profiles; the first and second support plates are stacked to ensure the load-bearing capacity of the hinge; the structure is simple, easy to adjust, and has a strong load-bearing capacity, making it suitable for outward-opening windows with grooves in various wide-cavity profiles. Attached Figure Description

[0019] Figure 1 This is a front view of the hinge of the present invention; Figure 2 This is a side view of the hinge of the present invention; Figure 3 This is an exploded view of the hinge of the present invention; Figure 4 This is a schematic diagram showing the position of the angle positioning block of the present invention; Figure 5 This is a schematic diagram of the hinge profile installation position according to the present invention; In the picture, 1. Base plate; 1.1. Guide groove; 1.2. Mounting hole; 2. Shim; 3. Limit pin; 4. Slider; 5. Sliding rod; 6. Angle positioning block; 6.1. Positioning hole; 7. Adjusting pin; 8. Linkage rod; 9. First support plate; 10. Second support plate; 10.1. Notch; 11. Load-bearing rod; 12. Tightening screw; 13. Stop post; 14. Fan-shaped rotating plate; 15. Frame rotating plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] like Figures 1 to 3 As shown, the outward-opening internal hinge disclosed in this embodiment mainly consists of a base plate 1, a load-bearing rod 11, a linkage rod 8, a sliding rod 5, a first support plate 9, a second support plate 10, and a slider 4.

[0023] The base plate 1 has frame rotating pieces 15 at both ends and in the middle. Tightening screws 12 pass through the base plate 1 and are screwed onto the frame rotating pieces 15. The frame rotating pieces 15 have a threaded structure and can be adapted to profiles of different thicknesses for installation. The base plate 1 has a guide groove 1.1 in the middle. The slider 4 slides in the guide groove 1.1. An angle positioning block 6 is placed at the end of the guide groove 1.1, located on the back of the base plate 1. The angle positioning block 6 has positioning holes 6.1 that are fixed to the mounting holes 1.2 of the base plate 1. By restricting the movement of the slider 4, the required angle is achieved. The base plate 1 has multiple mounting holes 1.2, which can be selected according to the required angle. A stop post 13 is riveted to the end of the base plate 1. The end of the second support piece 10 has a notch 10.1. After the hinge is fully closed, the stop post 13 locks the notch 10.1 of the second support piece to prevent the second support piece 10 from moving. The sealing performance of the window sash is enhanced; one end of the linkage rod 8 is riveted to the end of the second support plate 10, and the other end is riveted to the tail end of the base plate 1 through the adjusting nail 7. The adjusting nail 7 is an eccentric structure. Rotating the adjusting nail 7 causes the linkage rod 8 to shift, thereby moving the window sash in the indoor and outdoor directions and adjusting the sealing of the window sash; one end of the sliding rod 5 is riveted to the slider 4, and the other end is riveted to the middle of the linkage rod 8. With the movement of the hinge, the sliding rod 5 pushes the slider 4 to move in the guide groove 1.1; one end of the load-bearing rod 11 is riveted to the base plate 1, and the middle is separated by a phosphor bronze gasket 2. The edge of the base plate 1 is riveted with a limit nail 3 to restrict the movement trajectory of the load-bearing rod 11. The other end of the load-bearing rod 11 is riveted to the end of the second support plate 10. The second support plate 10 and the first support plate 9 are superimposed and riveted together. The side of the first support plate 9 has a fan-shaped rotating blade 14.

[0024] During hinge installation, the base plate 1 is pressed against the profile groove, and the screw 12 is tightened with a wrench. The frame hinge 15 clamps the profile to complete the pre-installation. The first support plate 9 is inserted into the sash profile groove, and the side sash hinge 14 is tightened to complete the pre-installation. The second support plate 10 is pressed against the sash groove to ensure the load-bearing capacity of the window sash. After the sliding support is adjusted to the appropriate position, it is fixed with the mounting screws. The angle positioning block 6, which is used to limit the opening angle, is fixed with the positioning hole 6.1 and the base plate mounting hole 1.2 according to the opening angle requirement. When the hinge is opened, the sliding support opens to the required angle when the end of the slider 4 touches the angle positioning block 6. The base plate 1 has multiple mounting holes 1.2, which can be selected according to the required angle. At the same time, by changing the angle positioning block 6 of different lengths, the sliding distance of the slider 4 in the guide groove 1.1 of the base plate can be changed, thereby changing the required opening angle of the sliding support. The end of the linkage rod 8 has an adjusting pin 7. By turning it with a wrench, the window sash can be moved in the indoor and outdoor directions to improve the window sash sealing.

[0025] The base plate 1 has a strip-shaped structure, suitable for embedding into the standard hardware mounting grooves of mainstream door and window profiles. A guide groove 1.1, extending through part of the base plate 1, is provided in the middle. The slider 4 is placed in the guide groove 1.1, forming a sliding fit to ensure that the slider 4 moves longitudinally along the guide groove 1.1. One end of the sliding rod 5 is connected to the slider 4 by a rivet. One end of the load-bearing rod 11 and one end of the linkage rod 8 are each independently fixed to the base plate 1 by rivets. The other end of the sliding rod 5 is riveted to the middle section of the linkage rod 8. Through this linkage structure, when the slider 4 moves, it can drive the linkage rod 8 and the load-bearing rod 11 to move, controlling the window sash to open smoothly along a set trajectory.

[0026] To address the physical interference issues that can easily arise from wide-cavity profiles, this embodiment features an extended center-to-center distance for the riveting points of the load-bearing rod 11, specifically the hole spacing L, allowing the window sash to overcome the wider window frame obstacle during initial opening. Simultaneously, to resolve the increased bending moment and window sash sagging issues caused by the longer lever arm, the load-bearing rod 11 is made of high-strength sheet metal with a thickness of 4-6mm, improving the cross-sectional bending stiffness. At the hinge point between the load-bearing rod 11 and the base plate 1, a phosphor bronze gasket 2 is provided for lubrication and wear prevention, ensuring smooth operation over long-term use.

[0027] In terms of load-bearing structure, this embodiment adopts a composite stacked form of the first support plate 9 and the second support plate 10. The first support plate 9 is L-shaped and can be directly inserted into the hardware groove of the window sash profile; the second support plate 10 is attached to the lower end of the first support plate 9 and fixed together, and its plate surface is suitable for flatly attaching to the outside of the groove of the sash profile. The other end of the load-bearing rod 11 and the other end of the linkage rod 8 are both riveted to the second support plate 10. This composite design disperses the force on the window sash and avoids excessive stress concentration in a single position of the profile.

[0028] Regarding the opening angle control, refer to Figure 1 and Figure 4 An angle positioning block 6 is placed at the end of the guide groove 1.1. When the window sash is opened, the slider 4 moves in the guide groove 1.1 until it abuts against the angle positioning block 6, thereby limiting the maximum opening angle of the window. Multiple mounting holes 1.2 are pre-drilled on the surface of the base plate 1, and positioning holes 6.1 are formed on the angle positioning block 6. By adjusting the position of the fasteners in different mounting holes 1.2, or by replacing the angle positioning blocks 6 with different lengths, the maximum opening angle can be flexibly adjusted.

[0029] To compensate for the aging gaps in the sealing strip caused by long-term use, this embodiment improves the riveting structure at the base of the linkage rod 8. The linkage rod 8 is riveted to the base plate 1 using an adjusting pin 7, which is an eccentric cam structure. When the seal needs to be adjusted, the adjusting pin 7 is rotated using a tool, causing it to push the linkage rod 8 to move through the eccentric effect, thereby moving the window sash in the indoor-outdoor direction, i.e., the Z-axis direction, re-tightening the sealing strip and restoring the window's sealing performance.

[0030] For closure stability, a stop post 13 is riveted to the end of the base plate 1, and a corresponding notch 10.1 is provided at the end of the second support piece 10. When the window sash is fully closed, the stop post 13 is inserted into the notch 10.1 of the second support piece 10, preventing the second support piece 10 from shifting laterally under strong wind negative pressure, thus improving the wind pressure resistance of the entire window. A stop pin is provided in the middle of the base plate 1 or a limit pin 3 is riveted to the edge to limit the extreme movement trajectory of the load-bearing rod 11; a clearance position is provided on one side of the load-bearing rod 11 so that the load-bearing rod 11 and one end of the linkage rod 8 can be placed horizontally when the hinge is closed, reducing the space occupied by the hinge.

[0031] In terms of installation, this embodiment adopts a drill-free clamping structure. Frame rotating pieces 15 with internal threads are pre-set at both ends and the middle of the base plate 1. Tightening screws 12 pass through the base plate 1 and screw into the frame rotating pieces 15. During installation, the base plate 1 is pushed into the built-in groove of the window frame, and the tightening screws 12 are tightened. The frame rotating pieces 15 rotate and rise along the threads, thereby clamping and fixing the lip of the profile groove. Similarly, the side of the first support piece 9 is also equipped with a fan rotating piece 14. Rotating the fan rotating piece 14 fixes the first support piece 9 inside the window sash groove. This drill-free design not only protects the integrity of the internal structure of the door and window profiles but also improves the convenience of installation and position adjustment.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. An outwardly opening, internally mounted hinge suitable for wide-cavity profiles, comprising a base plate (1), a load-bearing rod (11), a linkage rod (8), a sliding rod (5), a first support plate (9), a second support plate (10), and a slider (4), characterized in that: The base plate (1) is provided with a guide groove (1.1), and the slider (4) is slidably placed in the guide groove (1.1); one end of the sliding rod (5) is connected to the slider (4) by a rivet; one end of the load-bearing rod (11) and the linkage rod (8) are respectively fixed to the base plate (1) by rivets; the lower end of the first support plate (9) is superimposed on the second support plate (10) and fixedly connected, and the two ends of the second support plate (10) are respectively riveted to the other end of the load-bearing rod (11) and the other end of the linkage rod (8); the other end of the sliding rod (5) is riveted to the middle part of the linkage rod (8).

2. An outswing casement window according to claim 1, wherein: The load-bearing rod (11) is made of a plate with a thickness of 4-6mm. The hole spacing L of the rivet points at both ends of the load-bearing rod (11) is lengthened. A phosphor bronze gasket (2) is provided between the load-bearing rod (11) and the base plate (1) to separate them.

3. The outward-opening, internally-installed hinge according to claim 1, characterized in that: The slider (4) slides in the guide groove (1.1) of the base plate (1). An angle positioning block (6) is placed at the end of the guide groove (1.1). The slider (4) slides against the angle positioning block (6) to limit the maximum opening angle. The length of the angle positioning block (6) is changed according to the opening angle requirement.

4. The outward-opening, internally-installed hinge according to claim 3, characterized in that: The base plate (1) has multiple mounting holes (1.2), and the angle positioning block (6) has a positioning hole (6.1). Fasteners pass through the positioning hole (6.1) and are fixed on the mounting hole (1.2).

5. The outswing casement window of claim 1, wherein: The linkage rod (8) is riveted to the adjusting pin (7) on the base plate (1). The adjusting pin (7) is an eccentric structure. Rotating the adjusting pin (7) drives the linkage rod (8) to move in the indoor and outdoor directions to achieve window sealing adjustment.

6. The outward-opening, internally-installed hinge according to claim 1, characterized in that: The second support piece (10) and the first support piece (9) are stacked. The first support piece (9) is L-shaped and is inserted into the slot of the fan-shaped profile. The second support piece (10) is attached to the outside of the slot.

7. An outswing casement window according to claim 6 wherein: The first support plate (9) has a fan-shaped rotating blade (14) on its side. Rotating the fan-shaped rotating blade (14) fixes the first support plate (9) to the fan groove.

8. The outswing casement window of claim 1, wherein: The base plate (1) has frame rotating plates (15) at both ends. Tightening screws (12) pass through the base plate (1) and are screwed onto the frame rotating plates (15). The frame rotating plates (15) have a threaded structure.

9. The outswing casement window of claim 1, wherein: The base plate (1) has a stop pin in the middle to limit the movement trajectory of the load-bearing rod (11); the load-bearing rod (11) has a clearance position on one side, and when the hinge is closed, one end of the load-bearing rod (11) and the linkage rod (8) are placed horizontally.

10. The outward-opening, internally-installed hinge according to claim 1, characterized in that: The bottom plate (1) is riveted with a stop post (13) at one end, and the second support plate (10) has a notch (10.1) at one end. After the hinge is fully closed, the stop post (13) locks into the notch (10.1).

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