Hinge for doors and windows

Abstract

The hinge comprises a sliding groove, a short rod, a supporting arm and a long rod, a first supporting rod is arranged between the sliding groove and the supporting arm, one end of the first supporting rod is rotatably connected with the supporting arm, and the connecting point of the first supporting rod and the supporting arm is located between the short rod and the connecting point of the long rod and the supporting arm. The other end of the first supporting rod is movably connected with the sliding groove and located between the short rod and the connecting end of the long rod and the sliding groove, a supporting arm is arranged between the sliding groove and the long rod, the supporting arm supports the short rod and the first supporting rod in a hinged mode, one end of the supporting arm supports the long rod in a hinged mode, and the other end of the supporting arm is connected with the sliding groove in a sliding mode. The supporting arm, the short rod, the supporting arm, the long rod and the first supporting rod form two parallelograms. The double-quadrilateral connecting rod assembly is adopted, so that the structural strength of the linkage assembly is improved, the bearing performance of the hinge is improved, and the hinge is more suitable for doors and windows needing high bearing capacity.

Description

Technical Field

[0001] The utility model relates to a hinge for doors and windows, belonging to the technical field of door and window hardware accessories. Background Art

[0002] Door and window hinges are generally used to connect door and window frame profiles with door and window sashes. With the increasing height of residential buildings and the increasing demand for better sealing performance, the strength requirements for door and window sashes are increasing. This increase in strength and sealing performance inevitably increases the weight of the door and window sashes. This places increasing demands on the load-bearing capacity of the hinges connecting the door and window sashes to the profiles to ensure their safety and sealing performance. However, within the limited hinge structure, how to further improve the load-bearing performance of door and window hinges for doors and windows has been a constant goal for those skilled in the art. Utility Model Content

[0003] The purpose of the utility model is to provide a hinge for doors and windows with better load-bearing performance.

[0004] The utility model is realized through the following technical solutions:

[0005] A hinge for doors and windows, comprising a slide, a short rod, a support arm and a long rod, characterized in that a first support rod is provided between the slide and the support arm, one end of the first support rod is rotatably connected to support the support arm and the connection point is located between the connection points of the short rod and the long rod and the support arm, and the other end of the first support rod is movably connected to the slide and is located between the connection ends of the short rod and the long rod and the slide.

[0006] The hinge for doors and windows as described above is characterized in that the first support rod and the slide groove, short rod, support arm and long rod form two quadrilaterals, and the first support rod has a common side.

[0007] The hinge for doors and windows as described above is characterized in that the first support rod is parallel to the short rod and the long rod.

[0008] The hinge for doors and windows as described above is characterized in that one of the first support rod and the long rod is slidably and rotatably connected to the sliding groove, and the other is rotatably connected to the sliding groove.

[0009] The hinge for doors and windows as described above is characterized in that a support arm is provided between the slide groove and the long rod, the support arm hingedly supports the short rod and the first support rod, one end of the support arm hingedly supports the long rod, and the other end is slidably connected to the slide groove.

[0010] The hinge for doors and windows as described above is characterized in that the short rod and the support arm are connected to the slide groove through independent sliders respectively, and the support arm is cross-hinged below the short rod.

[0011] The hinge for doors and windows as described above is characterized in that the support arm is parallel to the support arm and is close to or partially located below the support arm after being opened.

[0012] The hinge for doors and windows as described above is characterized in that the support arm, the short rod, the supporting arm, the long rod and the first support rod form two parallelograms.

[0013] The hinge for doors and windows as described above is characterized in that the support arm is provided with an axial protrusion.

[0014] The hinge for doors and windows as described above is characterized in that a second support rod is provided between the slide groove and the long rod, one end of the second support rod is rotatably connected to the long rod, and the other end is slidably connected to the slide groove and is located between the connection end of the long rod and the first support rod.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model adopts a double quadrilateral connecting rod assembly, adds a first support rod and a support arm design, and increases the connection points between the connecting rod assembly and the slide groove, which can better disperse the gravity that the support arm bears when it is suspended in the air. At the same time, the support arm also adds support points on the long rod, the first support rod and the short rod near the support arm end, thereby improving the structural strength of the linkage assembly.

[0017] In the present invention, the sliding connection with the slide groove adopts an independent slider connection, which ensures the smooth movement of the hinge without reducing the strength of the slide groove, further improving the load-bearing performance of the hinge, and is more suitable for doors and windows that require high load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is one of the schematic diagrams of the decomposition structure of the utility model;

[0020] Figure 3 It is a partial structural decomposition diagram of the utility model;

[0021] Figure 4 This is a structural diagram of the support arm of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to specific embodiments.

[0023] like Figure 1-4 As shown, a hinge for doors and windows includes a chute 1, a short rod 2, a support arm 3, and a long rod 4. A first support rod 5 is provided between the chute 1 and the support arm 3. One end of the first support rod 5 is rotatably connected to and supports the support arm 3, and the connection point is located between the connection points of the short rod 2 and the long rod 4 with the support arm 3. The other end of the first support rod 5 is movably connected to the chute 1 and is located between the connection ends of the short rod 2 and the long rod 4 with the chute 1. The short rod 2 is hinged to the support arm 3 at one end and slidably connected to the chute 1 at the other end. The long rod 4 is hinged to the support arm 3 at one end and rotatably connected to the chute 1 at the other end. The provision of the first support rod 5 better supports the support arm 3, increasing its load-bearing capacity and stability. Furthermore, the first support rod 5 forms two quadrilaterals with the chute 1, the short rod 2, the support arm 3, and the long rod 4, with the first support rod 5 sharing a side. As the door and window sash opens and closes, the support arm 3 simultaneously drives the short rod 2, the first support rod 5, and the long rod 4 to move in unison, allowing for smooth opening and closing.

[0024] Preferably, the first support rod 5 is parallel to the short rod 2 and the long rod 4. After bearing the load, the force transmission direction is consistent, which makes it easier to disperse the force on the support arm 3 and improve the load-bearing safety of the hinge.

[0025] In one embodiment of the present invention, one of the first support rod 5 and the long rod 4 is slidably and rotatably connected to the chute 1, while the other is rotatably connected to the chute 1. For example, the long rod 4 is hinged to the chute 1, with the hinge end fixed, while the first support rod 5 is slidably and rotatably connected to the chute 1. Alternatively, the first support rod 5 is hinged to the chute 1, with the hinge end fixed, while the long rod 4 is slidably and rotatably connected to the chute 1. This flexible arrangement of the fixed hinge end of the hinge linkage assembly allows for adaptability to a wider range of frame profiles.

[0026] To further enhance the hinge's load-bearing capacity, a support arm 6 is provided between the chute 1 and the long rod 4. This support arm 6 hinges and supports the short rod 2 and the first support rod 5. One end of the support arm 6 hinges and supports the long rod 4, while the other end slides into the chute 1. The support arm 6 is positioned below the short rod 2, long rod 4, and first support rod 5, providing enhanced support for these three components. The short rod 2 and support arm 6 are each connected to the chute 1 via independent sliders 7. The short rod 2 and support arm 6 are pivotally connected in a crosswise manner, allowing for a short sliding distance between the two sliders 7. Furthermore, the short rod 2 has two support points, one on each slider 7 and support arm 6, resulting in greater structural strength and improved load-bearing and safety when suspended.

[0027] Preferably, the support arm 6 is parallel to the support arm 3 and is close to or partially below the support arm 3 after opening, and the end of the support arm 6 near the slide groove is rotatably connected to the short rod 2 from below the short rod 2, so that the short rod 2 and the support arm 6 are cross-connected in a section of the slide groove 1 below the end of the support arm 3, which helps the support arm 3 to disperse the gravity of the door and window sashes, increases the supporting strength of the support arm 3, and improves the load-bearing capacity of the support arm 3 when suspended in the air.

[0028] In order to ensure smooth opening and closing of the hinge, the support arm 6 forms two parallelograms with the short rod 2, the supporting arm 3, the long rod 4 and the first support rod 5. The first support rod 5 has a common edge, so that the doors and windows can open and close more smoothly without interfering or affecting each other.

[0029] In a preferred embodiment of the present invention, an axial projection 61 is provided on the support arm 6. This projection 61 can be a convex surface 611 formed on the surface of the support arm 6 or a bent rib 612 extending from the side of the support arm 6. This increases the structural strength of the support arm 6 without affecting the opening and closing performance of the hinge. Of course, having both the convex surface 611 and the bent rib 612 can further enhance the strength of the support arm 6.

[0030] In a preferred embodiment of the present invention, a second support rod 8 is provided between the chute 1 and the long rod 4. One end of the second support rod 8 is pivotally connected to the bottom of the long rod 4, and the other end is slidably connected to the chute 1 and positioned between the long rod 4 and the connection end of the first support rod 5, thereby improving the load-bearing capacity of the long rod 4 when suspended in the air. The second support rod 8 is also slidably connected to the chute 1 via an independent slider 7, avoiding the need for a sliding hole in the chute 1, which would affect the structural strength of the chute 1.

Claims

1. A hinge for doors and windows, comprising a slide groove (1), a short rod (2), a support arm (3) and a long rod (4), characterized in that: A first support rod (5) is provided between the slide groove (1) and the support arm (3), one end of the first support rod (5) is rotatably connected to the support arm (3) and the connection point is located between the connection points of the short rod (2), the long rod (4) and the support arm (3), and the other end of the first support rod (5) is movably connected to the slide groove (1) and is located between the connection ends of the short rod (2), the long rod (4) and the slide groove (1).

2. A door and window hinge according to claim 1, characterized in that The first support rod (5) forms two quadrilaterals with the chute (1), the short rod (2), the supporting arm (3) and the long rod (4), and the first support rod (5) has a common side.

3. A door and window hinge according to claim 1, characterized in that The first support rod (5) is parallel to the short rod (2) and the long rod (4).

4. A door and window hinge according to claim 1, characterized in that One of the first support rod (5) and the long rod (4) is slidably and rotatably connected to the slide groove (1), and the other is rotatably connected to the slide groove (1).

5. The hinge for doors and windows according to claim 1, characterized in that A support arm (6) is provided between the slide groove (1) and the long rod (4), and the support arm (6) hinges and supports the short rod (2) and the first support rod (5). One end of the support arm (6) hinges and supports the long rod (4), and the other end is slidably connected to the slide groove (1).

6. A door and window hinge according to claim 5, characterized in that The short rod (2) and the support arm (6) are connected to the slide groove (1) through independent sliders (7), and the support arm (6) is cross-hinged below the short rod (2).

7. A door and window hinge according to claim 5, characterized in that The support arm (6) is parallel to the support arm (3) and is close to the support arm (3) or partially located below the support arm (3) after being opened.

8. The hinge for doors and windows according to claim 5, characterized in that The support arm (6) forms two parallelograms with the short rod (2), the supporting arm (3), the long rod (4) and the first support rod (5).

9. The door and window hinge according to claim 5, characterized in that The support arm (6) is provided with an axial protrusion (61).

10. A door and window hinge according to claim 1 or 5, characterized in that A second support rod (8) is provided between the slide groove (1) and the long rod (4), one end of the second support rod (8) is rotatably connected to the long rod (4), and the other end is slidably connected to the slide groove (1) and is located between the connection end of the long rod (4) and the first support rod (5).

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