Hinge for doors and windows

Abstract

The present invention discloses a hinge for doors and windows, comprising: a first mounting seat connected to the window frame, a second mounting seat connected to the window sash, a first connecting rod and a second connecting rod, the four forming a four-bar linkage; a stabilizing connecting rod is hinged on the first mounting seat, one end of the stabilizing connecting rod is hinged to the first mounting seat, and the other end is provided with a sliding groove, and a sliding protrusion for matching with the sliding groove is provided on the connecting rod with a longer hinge distance in the connecting rod; when the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped, and the sliding protrusion slides in the sliding groove, so that the sliding protrusion drives the stabilizing connecting rod to swing based on the first mounting seat, so as to realize the stabilizing connecting rod to be expanded or overlapped relative to the first mounting seat, and there is friction during the relative movement between the connecting rod with a longer hinge distance and the stabilizing connecting rod, so that when the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped with a damping feeling.

Description

Technical Field

[0001] The invention relates to the field of hinges, and in particular to a hinge for doors and windows. Background Art

[0002] The hinges used on the windows of modern high-rise buildings are mostly multi-link slider hinges. The multi-link enables the windows to be opened and closed smoothly. The combination with a slider with damping can increase the safety of window opening and closing on the one hand, and increase the stability of the window after opening on the other hand. The existing multi-link slider hinge needs to be provided with a long slider groove on the hinge, but the slider groove is prone to dust and other debris. After a period of use, the hinge will have problems such as increased resistance and jamming, and needs regular cleaning and maintenance, which is not conducive to long-term use. The present invention is developed under this background. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art and to provide a hinge for doors and windows.

[0004] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0005] A hinge for doors and windows, comprising: a first mounting seat connected to the window frame, a second mounting seat connected to the window sash, a first connecting rod and a second connecting rod, the four forming a four-bar linkage; one end of the first connecting rod and the second connecting rod are respectively hinged to the first mounting seat, and the other end is respectively hinged to the second mounting seat, so that the first mounting seat forms a frame of the four-bar linkage, the second mounting seat forms a connecting rod of the four-bar linkage, and the first connecting rod and the second connecting rod respectively form a connecting rod of the four-bar linkage; a stabilizing connecting rod is hinged on the first mounting seat, and one end of the stabilizing connecting rod is hinged to the first mounting seat, and the other end is provided with a sliding A groove is provided on the connecting rod with a longer hinge distance in the connecting rod, and a sliding protrusion for matching with the sliding groove is provided; when the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped, and the sliding protrusion slides in the sliding groove so that the sliding protrusion drives the stabilizing link to swing based on the first mounting seat to realize the expansion or overlap of the stabilizing link relative to the first mounting seat, and there is friction during the relative movement between the connecting rod with a longer hinge distance and the stabilizing link, so that when the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped with a damping feeling.

[0006] Preferably, the four-bar linkage consisting of the first mounting seat, the second mounting seat, the first connecting rod and the second connecting rod is a double rocker mechanism.

[0007] Preferably, the sliding protrusion comprises a first cylindrical boss, and the diameter of the first cylindrical boss matches the width of the sliding groove.

[0008] Preferably, a countersunk groove is further provided on the back side of the stabilizing link at a position corresponding to the slide groove, and a second cylindrical boss is provided at one end of the first cylindrical boss away from the stabilizing link, and the diameter of the second cylindrical boss is larger than the first cylindrical boss and smaller than the width of the countersunk groove.

[0009] Preferably, the first cylindrical boss adapted to different heights can change the interaction force generated by the abutment between the second cylindrical boss and the countersunk groove, so that the mutual movement between the first connecting rod and the second connecting rod reaches a preset friction force, so that the second mounting seat and the first mounting seat can be expanded or overlapped according to a preset damping feeling.

[0010] Preferably, the first mounting seat is provided with a single or multiple clamps capable of fixing the first mounting seat to the target mounting object, and the clamps include a rotatable clamping screw and a clamping claw connected to the rotating shaft of the clamping screw and capable of synchronous rotation.

[0011] A top angle piece is provided on the second mounting seat at one end close to the shorter connecting rod in the four-bar linkage, and a shift portion cooperating with the top angle piece is provided on the first mounting seat.

[0012] Preferably, the top corner piece is rigidly connected to the second mounting seat, the second mounting seat is supported on the upper side of the top corner piece, the lower side of the top corner piece is supported on the upper side of the second connecting rod, the second connecting rod is hinged at the joint of the top corner piece and the second mounting seat, and the width of the top corner piece is greater than the width of the second mounting seat and less than the length of the second connecting rod.

[0013] Preferably, a first rotating bracket is provided between the first mounting seat and the second connecting rod, and a second rotating bracket is provided between the second mounting seat and the second connecting rod.

[0014] Preferably, the first rotating bracket is provided with a first bracket flange facing the second connecting rod, the first bracket flange and the first rotating bracket constitute a first bracket fixing groove, the first bracket fixing groove matches the shape of the second connecting rod, the first rotating bracket is also provided with a first bracket protrusion, and the second connecting rod is provided with a first protrusion clamping portion matching the first bracket protrusion.

[0015] The beneficial effect of the present invention is to provide a hinge for doors and windows, comprising: a first mounting seat connected to the window frame, a second mounting seat connected to the window sash, a first connecting rod and a second connecting rod, the four of which constitute a four-bar linkage; one end of the first connecting rod and the second connecting rod are respectively hinged to the first mounting seat, and the other end is respectively hinged to the second mounting seat, so that the first mounting seat forms a frame of the four-bar linkage, the second mounting seat forms a connecting rod of the four-bar linkage, and the first connecting rod and the second connecting rod respectively form a connecting rod of the four-bar linkage; a stabilizing connecting rod is hinged on the first mounting seat, and one end of the stabilizing connecting rod is hinged to the first mounting seat A slide groove is provided at the other end, and a sliding protrusion for matching with the slide groove is provided on the connecting rod with a longer hinge distance; when the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped, and the sliding protrusion slides in the slide groove so that the sliding protrusion drives the stabilizing link to swing based on the first mounting seat to achieve the expansion or overlap of the stabilizing link relative to the first mounting seat, and there is friction during the relative movement between the connecting rod with a longer hinge distance and the stabilizing link, so that when the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped with a damping feeling. This hinge for doors and windows reduces the structure of sliders and slide grooves, which prolongs the service life of the hinge and reduces the failure rate. At the same time, a stabilizing link structure is added to make the hinge more stable during and after the expansion process. It has the advantages of simple structure and reliable and stable mechanical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the installation of embodiment 1 of the present invention.

[0018] Figure 2 The overall structure of Example 1 of the present invention is opened. Figure 1 .

[0019] Figure 3 The overall structure of Example 1 of the present invention is opened. Figure 2 .

[0020] Figure 4 It is a schematic diagram of the overall structure of Example 1 of the present invention after folding.

[0021] Figure 5 It is a cross-sectional schematic diagram of the overall structure of Example 1 of the present invention after folding.

[0022] Figure 6 It is a schematic diagram of the overall structure explosion of Example 1 of the present invention.

[0023] Figure 7It is a schematic top view of the overall structure of Example 1 of the present invention after it is opened.

[0024] Figure 8 It is a top view schematic diagram of the overall structure of Example 1 of the present invention after folding.

[0025] Description of Reference Numerals

[0026]

[0027] DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The present invention will be further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0032] Example 1

[0033] refer to Figures 1 to 8 As shown, a hinge for doors and windows, comprising:

[0034] A first mounting base 1 connected to the window frame 10, a second mounting base 2 connected to the window sash 11, a first connecting rod 3 and a second connecting rod 4 form a four-bar linkage mechanism;

[0035] One end of the first connecting rod 3 and the second connecting rod 4 are respectively hinged to the first mounting seat 1, and the other end is respectively hinged to the second mounting seat 2, so that the first mounting seat 1 forms the frame of the four-bar linkage mechanism, the second mounting seat 2 forms the connecting rod of the four-bar linkage mechanism, and the first connecting rod 3 and the second connecting rod 4 respectively form the connecting rod of the four-bar linkage mechanism;

[0036] A stabilizing link 5 is hinged on the first mounting seat 1, one end of the stabilizing link 5 is hinged to the first mounting seat 1 and the other end is provided with a slide groove 502, and a sliding protrusion for matching with the slide groove 502 is provided on the connecting rod with a longer hinge distance among the connecting rods;

[0037] The movement law of the hinge conforms to the double rocker mechanism in the four-bar linkage system, so that the hinge operates according to the movement law of the double rocker mechanism. When the four-bar linkage moves, the second mounting seat 2 and the first mounting seat 1 can be relatively expanded or overlapped, and the sliding protrusion slides in the sliding groove 502, so that the sliding protrusion drives the stabilizing link 5 to swing based on the first mounting seat 1, so as to realize the expansion or overlap of the stabilizing link 5 relative to the first mounting seat 1. There is friction between the connecting rod with a longer hinge distance and the stabilizing link 5 during the relative movement, so that when the four-bar linkage moves, the second mounting seat 2 and the first mounting seat 1 can be relatively expanded or overlapped with a damping feeling.

[0038] In this embodiment, the sliding protrusion includes a first cylindrical boss 12, the diameter of the first cylindrical boss 12 matches the width of the slide groove 502, and a countersunk groove 501 is further provided at the back of the stabilizing link corresponding to the position of the slide groove 502. The first cylindrical boss 12 is provided with a second cylindrical boss 13 at one end away from the stabilizing link, and the diameter of the second cylindrical boss 13 is larger than the first cylindrical boss 12 and smaller than the width of the countersunk groove 501. As an example, the sliding protrusion is provided with a threaded inner hole and is detachably connected to the first connecting rod by screws, and a device that can increase the stability of the stabilizing link 5 and the first connecting rod 3 is installed between the stabilizing link 5 and the first connecting rod 3. The damping plate 7 of the rod 5 for sliding resistance can adjust the damping between the stabilizing link and the first connecting rod 3 by tightening the screws that fix the sliding protrusion. The sliding protrusion of the above structure can reduce the difficulty of hinge assembly while reducing the use of parts. Only one screw is needed to connect the sliding protrusion to the first connecting rod 3, so that the first connecting rod 3 drives the stabilizing link to swing. At the same time, a second cylindrical boss 13 is set to be hidden in the countersunk groove 501 on the back side of the first connecting rod 3. While realizing the Z-direction connection between the first connecting rod 3 and the stabilizing link, the height direction space occupied by the two will not be increased, which is conducive to reducing the overall thickness of the hinge for doors and windows, making the hinge for doors and windows more beautiful.

[0039] In this embodiment, the first cylindrical boss 12 adapted to different heights can change the interaction force generated by the abutment between the second cylindrical boss 13 and the countersunk groove 501, so that the mutual movement between the first connecting rod and the second connecting rod reaches a preset friction force, so that the second mounting seat and the first mounting seat can be expanded or overlapped according to the preset damping feeling.

[0040] In this embodiment, a damping plate 7 is also provided between the stabilizing link and the first mounting seat 1. The stabilizing link and the first mounting seat 1 are pivotally connected via a first connecting shaft with an internal threaded hole. The first connecting shaft is fixed to the first mounting seat 1 via screws. The damping of the swing between the stabilizing link and the first mounting seat 1 can be adjusted accordingly by adjusting the tightening degree of the screws.

[0041] In this embodiment, a single or multiple clamps 9 are installed on the first mounting seat 1 to fix the first mounting seat 1 to the target object. The clamp 9 includes a rotatable clamping screw 901 and a clamping claw 902 connected to the rotating shaft of the clamping screw 901 and capable of rotating synchronously.

[0042] A top corner piece 6 is provided on the second mounting seat 2 at one end close to the shorter connecting rod in the four-bar linkage, and a gear portion 101 cooperating with the top corner piece 6 is provided on the first mounting seat 1, and the gear portion is a wrapping angle piece that allows the top corner piece 6 to be inserted and fixed, and the top corner piece 6 is rigidly connected to the second mounting seat 2, and the second connecting rod 4 is hinged at the junction of the top corner piece 6 and the second mounting seat 2, the second mounting seat 2 is supported on the upper side surface of the top corner piece 6, and the lower side surface of the top corner piece 6 is supported on the upper side surface of the second connecting rod 4, and the second connecting rod 4 is hinged at the junction of the top corner piece 6 and the second mounting seat 2, and the width of the top corner piece 6 is greater than the width of the second mounting seat 2, and less than the length of the second connecting rod 4. By rigidly connecting the top angle piece 6 with the second mounting seat 2, the rigidity of the end of the second mounting seat 2 is strengthened, so that the connection strength between the second connecting rod 4 and the hinge point of the second mounting seat 2 is improved. Since the rigidity of the hinge point of the second mounting seat 2 is improved, the rigidity of the second connecting rod 4 can be improved by thickening, shortening the length, etc. to match, thereby increasing the bearing capacity of the hinge. At the same time, the top angle piece 6 can increase the contact area of ​​the hinge point and improve the stability of the hinge. In this embodiment, because the top angle piece 6 is provided, the arm of force between the hinge point where the window sash 11 is connected to the first mounting seat 1 and the second connecting rod 4 is reduced, thereby reducing the load on the hinge point and increasing the bearing capacity of the hinge.

[0043] The first mounting seat 1 is provided with a plurality of mounting holes 103 recessed from the non-mounting surface of the first mounting seat 1 toward the mounting surface. By using suitable screws, it can be ensured that the top of the fixing screw will not be exposed from the non-mounting surface of the first mounting seat 1 after the hinge is installed.

[0044] During installation, first position the second mounting seat 2 on the window sash 11 by means of the limiting plate 201, the limiting pressure plate 203 and the limiting fixing screw 202, and fix the hinge on the window sash 11 by means of the fixing screw. Then, position the first mounting seat 1 on the window frame 10 by means of the positioning plate 102. By rotating the clamping screw 901 of the clamp 9, the clamping claw 902 is rotated so that the clamping claw is clamped on the window frame 10 to achieve preliminary fixation of the hinge. After adjusting the position of the window sash 11, use screws through the mounting hole 103 on the first mounting seat 1 to fasten the hinge to the window frame 10.

[0045] After the installation is firm, push the window sash 11 by hand to make the hinge unfold, wherein the first connecting rod 3 and the second connecting rod 4 rotate around the first mounting seat 1 and move according to the movement law of the double rocker mechanism. When the window sash 11 is opened to a certain angle, the top angle piece 6 is disengaged from the wrapping angle piece, and the window sash 11 can be separated from the window frame 10 to complete the window opening action. In the above process, one end of the stabilizing link 5 rotates driven by the sliding protrusion, and the damping plate 7 between the stabilizing link 5 and the first mounting seat 1 increases the friction resistance during the window opening process, thereby playing a stabilizing role.

[0046] When the window sash 11 is pulled, the hinge is folded. When the window sash 11 is closed to a certain angle, the top corner piece 6 is gradually inserted into the corner piece to play a positioning role. After the window is completely closed, the top corner piece 6 is fixed in the corner piece, and the hinge is folded and hidden between the window frame 10 and the window sash 11.

[0047] In this embodiment, a first rotating bracket 1401 is provided between the first mounting seat 1 and the second connecting rod 4, and a second rotating bracket 15 is provided between the second mounting seat 2 and the second connecting rod 4. The first rotating bracket 1401 is provided with a first bracket flange facing the second connecting rod 4, and the first bracket flange and the first rotating bracket 1401 constitute a first bracket fixing groove, and the first bracket fixing groove matches the shape of the second connecting rod. The first rotating bracket 1401 is also provided with a first bracket protrusion 1402, and the second connecting rod 4 is provided with a first protrusion clamping portion 401 matching the first bracket protrusion 1402; as an example, the first rotating bracket 1401 and the second rotating bracket 15 are made of copper alloy; the purpose of setting the first rotating bracket 1401 and the second rotating bracket 15 is to reduce the friction between the first mounting seat 1 and the second connecting rod 4, between the second mounting seat 2 and the second connecting rod 4, and the noise generated by the friction between the above two groups of contact parts, so as to further enhance the user experience of this door and window hinge.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "an example", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0049] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A hinge for doors and windows, characterized in that: include: A first mounting seat connected to the window frame, a second mounting seat connected to the window sash, a first connecting rod and a second connecting rod, which form a four-bar linkage mechanism; One end of the first connecting rod and the second connecting rod are respectively hinged to the first mounting seat, and the other end are respectively hinged to the second mounting seat, so that the first mounting seat forms the frame of the four-bar linkage mechanism, the second mounting seat forms the connecting rod of the four-bar linkage mechanism, and the first connecting rod and the second connecting rod respectively form the connecting rod of the four-bar linkage mechanism; A stabilizing link is hinged on the first mounting seat, one end of the stabilizing link is hinged to the first mounting seat and the other end is provided with a slide groove, and a sliding protrusion for matching with the slide groove is provided on the connecting rod with a longer hinge distance; When the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped, and the sliding protrusion slides in the sliding groove, so that the sliding protrusion drives the stabilizing link to swing based on the first mounting seat, so as to realize the expansion or overlap of the stabilizing link relative to the first mounting seat, and there is friction between the connecting rod with a longer hinge distance and the stabilizing link during the relative movement, so that when the four-bar linkage moves, the second mounting seat and the first mounting seat can be relatively expanded or overlapped with a damping feeling; The sliding protrusion includes a first cylindrical boss, the diameter of which matches the width of the slide groove; a countersunk groove is further provided at the back of the stabilizing link corresponding to the position of the slide groove, and a second cylindrical boss is provided at one end of the first cylindrical boss away from the stabilizing link, the diameter of the second cylindrical boss is larger than the first cylindrical boss and smaller than the width of the countersunk groove; The sliding protrusion is provided with a threaded inner hole and is detachably connected to the first connecting rod by screws, and a damping plate capable of increasing the sliding resistance of the stabilizing connecting rod is installed between the stabilizing connecting rod and the first connecting rod.

2. A door and window hinge according to claim 1, characterized in that The four-bar linkage composed of the first mounting seat, the second mounting seat, the first connecting rod and the second connecting rod is a double rocker mechanism.

3. A door and window hinge according to claim 1, characterized in that: The first cylindrical boss adapted to different heights can change the interaction force generated by the abutment between the second cylindrical boss and the countersunk groove, so that the mutual movement between the first connecting rod and the second connecting rod reaches a preset friction force, so that the second mounting seat and the first mounting seat can be expanded or overlapped according to the preset damping feeling.

4. A door and window hinge according to claim 1 or 2, characterized in that The first mounting seat is provided with a single or multiple clamps capable of fixing the first mounting seat to the target mounting object. The clamps include a rotatable clamping screw and a clamping claw connected to the rotating shaft of the clamping screw and capable of synchronous rotation.

5. A door and window hinge according to claim 1 or 2, characterized in that A top angle piece is provided on the second mounting seat at one end close to the shorter connecting rod in the four-bar linkage, and a shift portion cooperating with the top angle piece is provided on the first mounting seat.

6. A door and window hinge according to claim 5, characterized in that The top corner piece is rigidly connected to the second mounting seat, the second mounting seat is supported on the upper side of the top corner piece, the lower side of the top corner piece is supported on the upper side of the second connecting rod, the second connecting rod is hinged at the junction of the top corner piece and the second mounting seat, the width of the top corner piece is greater than the width of the second mounting seat and less than the length of the second connecting rod.

7. A door and window hinge according to claim 1 or 2, characterized in that: A first rotating bracket is provided between the first mounting seat and the second connecting rod, and a second rotating bracket is provided between the second mounting seat and the second connecting rod.

8. A door and window hinge according to claim 7, characterized in that: The first rotating bracket is provided with a first bracket flange facing the second connecting rod, the first bracket flange and the first rotating bracket constitute a first bracket fixing groove, the first bracket fixing groove matches the shape of the second connecting rod, the first rotating bracket is also provided with a first bracket protrusion, and the second connecting rod is provided with a first protrusion clamping portion matching the first bracket protrusion.

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