Casement window hinge structure with self-locking function

Abstract

The present invention discloses and provides a casement window hinge structure that is easy to use and improves the safety factor of the window sash against falling off. The casement window hinge structure with a self-locking function comprises a window frame fixing frame (1), a sliding component arranged on the window frame fixing frame (1), and a connecting rod mechanism connected to the sliding component. The casement window hinge structure also comprises a self-locking device arranged on the window frame fixing frame (1) and in contact with the sliding component. When the window is opened, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves outward and extends out of the window frame fixing frame (1) and then is embedded in the window frame profile to form a self-locking state; when the window is closed, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves inward and retracts into the window frame fixing frame (1) to release the self-locking state. The present invention can be widely used in the field of door and window hardware.

Description

Technical Field

[0001] The invention relates to a casement window hinge structure with a self-locking function. Background Art

[0002] The most common existing windows are casement windows and sliding windows, both of which have their own advantages and disadvantages. The window structure of a casement window is usually composed of a window frame, a window sash and a window hinge, that is, the window sash is connected to the window frame by a group of window hinges at the top and bottom, and the window hinge generally includes a window frame fixing frame and a connecting rod structure connected to the window frame fixing frame, and a sliding assembly arranged on the window frame fixing frame, and the connecting rod structure connects the window sash, the sliding assembly and the window frame fixing frame respectively. The more common four-link structure in the prior art is to adopt a four-link structure, which is respectively composed of a window sash fixing frame, a cantilever bracket, a long connecting rod and a short connecting rod, and the sliding assembly is a sliding block, and the window frame fixing frame is fixed to the bottom edge of the aluminum alloy window frame by screws, and the window sash fixing frame is fixed to the bottom edge of the aluminum alloy window sash by screws, and is hinged to the window frame fixing frame through a cantilever bracket, a sliding groove is arranged on the window frame fixing frame, and the sliding block is installed in the sliding groove, and the two ends of the long connecting rod are respectively connected to the cantilever bracket and the sliding block, and the two ends of the short connecting rod are respectively connected to the window sash fixing frame and the sliding block, and the movement of the window hinge drives the window, and the window is opened inward or outward through the window hinge. Since the wall thickness of the aluminum alloy window frame profile is relatively thin and the nailing force is too great, the screws are easily stripped. At the same time, the screws and the window frame profiles are made of different materials and have different hardnesses. During long-term use, it is difficult to avoid corrosion, which causes the screws to loosen. There is a risk of doors and windows falling off, which is prone to safety hazards. Therefore, when using traditional window hinges, in order to prevent doors and windows from falling off, anti-fall ropes need to be installed. These all cause certain inconveniences. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a casement window hinge structure with a self-locking function which is easy to use and improves the safety factor of the window sash against falling off.

[0004] The technical solution adopted by the present invention is: the present invention includes a window frame fixing frame, a sliding component arranged on the window frame fixing frame, and a connecting rod mechanism connected to the sliding component. The casement window hinge structure also includes a self-locking device arranged on the window frame fixing frame and in contact with the sliding component. When the window is opened, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves outward and extends out of the window frame fixing frame and then embeds with the window frame profile to form self-locking; when the window is closed, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves inward and retracts into the window frame fixing frame to release the self-locking state.

[0005] Furthermore, the self-locking device includes at least one self-locking sliding block located on the window frame fixing frame and slidably cooperated with the sliding assembly. The window frame fixing frame is provided with a sliding rail slidably cooperated with the sliding assembly. The self-locking sliding block can extend or retract longitudinally as the sliding assembly slides horizontally.

[0006] Furthermore, the sliding assembly includes a left sliding rod, and the connecting rod mechanism includes a window sash fixing frame, a cantilever bracket, a long connecting rod, and a short connecting rod. The window sash fixing frame is fixedly connected to the window sash, one end of the window sash fixing frame is hinged to the window frame fixing frame through the cantilever bracket, and the other end is hinged to the left sliding rod through the short connecting rod, one end of the long connecting rod is hinged to the cantilever bracket, and the other end is hinged to the left sliding rod.

[0007] Furthermore, a left special-shaped guide groove is provided at the bottom of the left sliding rod, a longitudinal stroke groove is provided on the window frame fixing frame, an upper guide column located in the left special-shaped guide groove and a lower guide column located in the longitudinal stroke groove are provided at the end of the self-locking sliding block, and the self-locking sliding block moves longitudinally in the longitudinal stroke groove under the action of the angle change of the left special-shaped guide groove.

[0008] Furthermore, the left special-shaped guide groove includes a first parallel groove, a second parallel groove, and an oblique guide groove connecting the first parallel groove and the second parallel groove, and the height distance of the oblique guide groove is equal to the distance of the longitudinal stroke groove.

[0009] Furthermore, the sliding assembly includes a left sliding bar, a right sliding bar and a conversion block, the connecting rod mechanism includes a window sash fixing frame, a cantilever bracket, a long connecting rod and a short connecting rod, the window sash fixing frame is fixedly connected to the window sash, one end of the window sash fixing frame is hinged to the right sliding bar through the cantilever bracket, and the other end is hinged to the left sliding bar through the short connecting rod, one end of the long connecting rod is hinged to the cantilever bracket, and the other end is hinged to the left sliding bar, and the self-locking device includes four self-locking sliding blocks, and the four self-locking sliding blocks are grouped and respectively located below the left sliding bar and the right sliding bar.

[0010] Furthermore, a left special-shaped guide groove is provided at the bottom of the left slide bar, a right special-shaped guide groove is provided at the bottom of the right slide bar, a longitudinal stroke groove is provided on the window frame fixing frame, and an upper guide column and a lower guide column are provided on the self-locking sliding block. The upper guide column is located in the left special-shaped guide groove or the right special-shaped guide groove, and the lower guide column is located in the longitudinal stroke groove. The self-locking sliding block moves longitudinally in the longitudinal stroke groove under the influence of the angle change of the left special-shaped guide groove or the right special-shaped guide groove.

[0011] Furthermore, one end of the conversion block is fixed to the window frame fixing frame by screw locking, and the other end can be respectively embedded and matched with the left sliding rod or the right sliding rod. The left sliding rod is provided with a first receiving groove for accommodating the head of the conversion block, and the right sliding rod is provided with a second receiving groove for accommodating the head of the conversion block.

[0012] Furthermore, a first extension portion located in the slide rail is disposed on the outer side of the left slide bar, and a second extension portion located in the slide rail is disposed on the outer side of the right slide bar.

[0013] Furthermore, the casement window hinge structure also includes a positioner arranged on the window frame fixing frame and in contact with the external window frame profile, and a mounting block arranged on the connecting rod mechanism and connected to the window sash.

[0014] The beneficial effects of the present invention are as follows: since the present invention includes a window frame fixing frame, a sliding component arranged on the window frame fixing frame, and a connecting rod mechanism connected to the sliding component, the casement window hinge structure also includes a self-locking device arranged on the window frame fixing frame and in contact with the sliding component. When the window is opened, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves outward and extends out of the window frame fixing frame and then embeds with the window frame profile to form a self-locking state; when the window is closed, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves inward and retracts into the window frame fixing frame to release the self-locking state. The present invention is safe and convenient to use. Even if the fixing screws are loosened after long-term use, the window sash will not fall off, thereby improving the safety factor of the window sash against falling off. Therefore, the present invention is easy to use and can improve the safety factor of the window sash against falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0016] Figure 2 It is an exploded structural diagram of the first embodiment of the present invention;

[0017] Figure 3 is a schematic structural diagram of a left slide bar according to a first embodiment of the present invention;

[0018] Figure 4 is a schematic structural diagram of a window frame fixing bracket according to an embodiment of the present invention;

[0019] Figure 5 is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0020] Figure 6 is an exploded structural diagram of the second embodiment of the present invention;

[0021] Figure 7 is a schematic structural diagram of a left slide bar according to a second embodiment of the present invention;

[0022] Figure 8 is a schematic structural diagram of a right slide bar according to a second embodiment of the present invention;

[0023] Fig. 9 is a schematic structural diagram of a window frame fixing bracket according to a second embodiment of the present invention;

[0024] Fig.10 It is a schematic diagram of the motion state structure of the sliding component of the second embodiment of the invention. DETAILED DESCRIPTION

[0025] The casement window hinge structure of the present invention is mainly used for the suspended windows of curtain walls, and is connected to the aluminum alloy window sash and the aluminum alloy window frame to form a casement window body. The casement window hinge structure is provided with a group on the upper side and the lower bottom of the aluminum alloy window sash to ensure the safe and convenient opening and closing of the aluminum alloy window sash. The following group of casement window hinge structures is mainly used as a perspective for introduction.

[0026] The present invention includes a window frame fixing frame 1, a sliding component arranged on the window frame fixing frame 1, and a connecting rod mechanism connected to the sliding component. The casement window hinge structure also includes a self-locking device arranged on the window frame fixing frame 1 and in contact with the sliding component. When the window is opened, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves outward and extends out of the window frame fixing frame 1 and then embeds with the window frame profile to form a self-locking state; when the window is closed, the sliding component is driven by the connecting rod mechanism so that the self-locking device moves inward and retracts into the window frame fixing frame 1 to release the self-locking state. In addition, the casement window hinge structure also includes a positioner 16 arranged on the window frame fixing frame 1 and in contact with the external window frame profile, and a mounting block 17 arranged on the connecting rod mechanism and connected to the window sash.

[0027] The technical solution claimed in this application is described in detail below in conjunction with specific embodiments: Embodiment 1:

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the linkage mechanism of this embodiment includes a window sash fixing frame 3, a cantilever bracket 4, a long connecting rod 5, and a short connecting rod 6. The sliding assembly includes a left sliding rod 7. The self-locking device includes at least one self-locking sliding block 2 located on the window frame fixing frame 1 and slidably matched with the sliding assembly. The number of the self-locking sliding blocks 2 can be set as needed, and one can be used for self-locking. However, in order to ensure safety and stability, a relatively stable one is set on each side of the window frame fixing frame 1. The window frame fixing frame 1 is provided with a slide rail 10 that slides with the left sliding rod 7. The slide rail 10 is set on the window On the side walls on both sides of the frame fixing frame 1, the self-locking sliding block 2 can be longitudinally extended or retracted as the left sliding rod 7 slides horizontally. The window sash fixing frame 3 is fixedly connected to the window sash. One end of the window sash fixing frame 3 is hinged to the window frame fixing frame 1 through the cantilever bracket 4, and the other end is hinged to the left sliding rod 7 through the short connecting rod 6. The mounting block 17 is arranged at the hinge between the short connecting rod 6 and the left sliding rod 7. One end of the long connecting rod 5 is hinged to the cantilever bracket 4, and the other end is hinged to the left sliding rod 7. The outer side of the left sliding rod 7 is provided with a first extension portion 70 located in the slide rail 10.

[0029] Specifically, two left special-shaped guide grooves 71 are provided at the bottom of the left slide bar 7, two longitudinal stroke grooves 11 are provided on the window frame fixing frame 1, and the end of the self-locking sliding block 2 is provided with an upper guide column 20 located in the left special-shaped guide groove 71 and a lower guide column 21 located in the longitudinal stroke groove 11. The self-locking sliding block 2 moves longitudinally in the longitudinal stroke groove 11 under the action of the angle change of the left special-shaped guide groove 71. The left special-shaped guide groove 71 includes two first parallel grooves 711 and second parallel grooves 712 that are staggered and parallel, and an oblique guide groove 713 connecting the first parallel groove 711 and the second parallel groove 712. The height distance of the oblique guide groove 713 is equal to the distance of the longitudinal stroke groove 11. The longitudinal stroke groove 11 constrains the lateral movement of the self-locking sliding block 2 and ensures that it can slide longitudinally, while the left special-shaped guide groove 71 ensures that The left slide bar 7 moves smoothly laterally, and the self-locking sliding block 2 moves under the action of the shear force generated by the oblique guide groove 713 and the longitudinal stroke groove 11. When the window sash is opened, the self-locking sliding block 2 extends outward from the window frame fixing frame 1 and is matched and embedded in the opening on the window frame profile. The self-locking sliding block 2 passes through the clearance hole 12 on the side wall of the window frame fixing frame 1. When the window sash is closed, the self-locking sliding block 2 shrinks inward into the window frame fixing frame 1. There is no special requirement for the shape of the self-locking sliding block 2. It can be rectangular, square or triangular, as long as it can come into contact with the window frame profile when extended. In order to ensure more contact area and reduce the occupied area when two are required, the shape of the self-locking sliding block 2 in this embodiment adopts a symmetrical L-shape, with its long end set on the outside to ensure the contact area, and the short ends are close to each other to reduce the space occupied area.

[0030] It should be particularly emphasized that, in the present embodiment, when the window sash is closed, the upper guide column 20 is located in the first parallel groove 711 and remains motionless. When the self-locking sliding block 2 starts to move, that is, when the upper guide column 20 enters the inclined guide groove 713, the self-locking sliding block 2 can begin to extend outward and come into contact with the window frame profile to achieve self-locking. The larger the angle at which the window sash is opened, the more reliable and stable this locking method is. In the actual production process, the closer the outer edge of the self-locking sliding block 2 is to the inner edge of the window frame profile, the better.

[0031] Embodiment 2:

[0032] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9As shown, this embodiment is roughly the same as the first embodiment, except that a group of self-locking devices is also provided on the right side of the present embodiment, and the sliding assembly is also changed. The linkage mechanism comprises a window sash fixing frame 3, a cantilever bracket 4, a long connecting rod 5, and a short connecting rod 6. The sliding assembly comprises a left sliding rod 7, a right sliding rod 8 and a conversion block 9. The window sash fixing frame 3 is fixedly connected to the window sash. The difference from the first embodiment is that one end of the window sash fixing frame 3 is hinged to the right sliding rod 8 through the cantilever bracket 4, and the other end is hinged to the left sliding rod 7 through the short connecting rod 6. The mounting block 17 is provided at the hinge between the short connecting rod 6 and the left sliding rod 7. One end of the long connecting rod 5 is hinged to the cantilever bracket 4, and the other end is hinged to the left sliding rod 7. The self-locking device comprises four self-locking sliding blocks 2. The four self-locking sliding blocks 2 are respectively arranged below the left sliding rod 7 and the right sliding rod 8 in groups. The outer side of the left sliding rod 7 is provided with a The first extension portion 70 in the rail 10 and the outer side of the right slide bar 8 are provided with a second extension portion 80 located in the slide rail 10, the first extension portion 70 and the second extension portion 80 are both boss structures, and are located in the slide rail 10 and slidably cooperate with it. The structure of the left slide bar 7 is basically the same as that of the right slide bar 8. Two left special-shaped guide grooves 71 are provided at the bottom of the left slide bar 7, and two right special-shaped guide grooves 81 are provided at the bottom of the right slide bar 8. A longitudinal stroke groove 11 is provided on the window frame fixing frame 1, and an upper guide column 20 and a lower guide column 21 are provided on the self-locking sliding block 2. The upper guide column 20 is located in the left special-shaped guide groove 71 or the right special-shaped guide groove 81, and the lower guide column 21 is located in the longitudinal stroke groove 11. The self-locking sliding block 2 moves longitudinally in the longitudinal stroke groove 11 under the influence of the angle change of the left special-shaped guide groove 71 or the right special-shaped guide groove 81, thereby extending or retracting the window frame fixing frame 1.

[0033] The left special-shaped guide groove 71 includes two first parallel grooves 711 and second parallel grooves 712 which are staggered and parallel, and an oblique guide groove 713 connecting the first parallel groove 711 and the second parallel groove 712. The height distance of the oblique guide groove 713 is equal to the distance of the longitudinal stroke groove 11. The longitudinal stroke groove 11 constrains the lateral movement of the self-locking sliding block 2 and ensures its longitudinal sliding, that is, the self-locking sliding block 2 passes through the clearance hole 12 on the side wall of the window frame fixing frame 1, and the left special-shaped guide groove 71 ensures the smooth lateral movement of the left slide bar 7, and enables the self-locking sliding block 2 to move under the action of the shear force generated by the oblique guide groove 713 and the longitudinal stroke groove 11. The right special-shaped guide groove 81 and the left special-shaped guide groove The principle of the invention is the same as that of the invention as described above, but the difference is that the directions are opposite. The right special-shaped guide groove 81 includes two third parallel grooves 811 and a fourth parallel groove 812 which are staggered and parallel, and a right oblique guide groove 813 connecting the third parallel groove 811 and the fourth parallel groove 812. The height distance of the right oblique guide groove 813 is equal to the distance of the longitudinal stroke groove 11. The longitudinal stroke groove 11 is used to constrain the lateral movement of the self-locking sliding block 2 and ensure its longitudinal sliding, that is, the self-locking sliding block 2 passes through the clearance hole 12 on the side wall of the window frame fixing frame 1, and the right special-shaped guide groove 81 is used to ensure the smooth lateral movement of the right slide bar 8, and the self-locking sliding block 2 moves under the action of the shear force generated by the right oblique guide groove 813 and the longitudinal stroke groove 11.

[0034] One end of the conversion block 9 is fixed to the window frame fixing frame 1 by screw locking, and the other end can be respectively embedded and matched with the left slide bar 7 or the right slide bar 8. The left slide bar 7 is provided with a first receiving groove 72 for accommodating the head of the conversion block 9, and the right slide bar 8 is provided with a second receiving groove 82 for accommodating the head of the conversion block 9.

[0035] like Fig.10 As shown, in the initial state, the head of the conversion block 9 is located in the second accommodating groove 82. When the window sash is opened, the right slide bar 8 starts to move. When the window sash is opened to 45 degrees, the left side of the second accommodating groove 82 will cause the conversion block 9 to rotate through the constraint of the arc fit. At this time, the second accommodating groove 82 corresponds to the first accommodating groove 72, so that the head of the conversion block 9 falls into the first accommodating groove 72. At this time, when the window sash continues to be opened, the left slide bar 7 moves accordingly; when the window sash is closed, the left slide bar 7 slides first. When the window sash is closed to 45 degrees, the left side of the second accommodating groove 82 will cause the conversion block 9 to rotate through the constraint of the arc fit. At this time, the second accommodating groove 82 corresponds to the first accommodating groove 72, so that the head of the conversion block 9 falls into the first accommodating groove 72, and the right slide bar 8 starts to move.

[0036] The contents mentioned in the above embodiments are not intended to limit the present invention. Without departing from the inventive concept of the present invention, any obvious replacement is within the protection scope of the present invention. The present invention can be widely applied to the field of doors and windows.

Claims

1. A casement window hinge structure with a self-locking function, comprising a window frame fixing frame (1), a sliding assembly arranged on the window frame fixing frame (1), and a connecting rod mechanism connected to the sliding assembly, characterized in that: The casement window hinge structure further comprises a self-locking device arranged on the window frame fixing frame (1) and in contact with the sliding assembly. When the window is opened, the sliding assembly is driven by the connecting rod mechanism so that the self-locking device moves outwardly and extends out of the window frame fixing frame (1) and then engages with the window frame profile to form a self-locking state. When the window is closed, the sliding assembly is driven by the connecting rod mechanism so that the self-locking device moves inwardly and retracts into the window frame fixing frame (1) to release the self-locking state. The self-locking device comprises at least one self-locking sliding block (2) located on the window frame fixing frame (1) and in sliding cooperation with the sliding assembly. The window frame fixing frame (1) is provided with a self-locking sliding block (2) which engages with the sliding block. The sliding rail (10) is slidably matched with the component, the self-locking sliding block (2) can be longitudinally extended or retracted as the sliding component slides horizontally, the sliding component includes a left sliding rod (7), and the connecting rod mechanism includes a window sash fixing frame (3), a cantilever bracket (4), a long connecting rod (5), and a short connecting rod (6). The window sash fixing frame (3) is fixedly connected to the window sash, one end of the window sash fixing frame (3) is hinged to the window frame fixing frame (1) through the cantilever bracket (4), and the other end is hinged to the left sliding rod (7) through the short connecting rod (6), one end of the long connecting rod (5) is hinged to the cantilever bracket (4), and the other end is hinged to the left sliding rod (7).

2. The casement window hinge structure with self-locking function according to claim 1, characterized in that: A left special-shaped guide groove (71) is provided at the bottom of the left slide bar (7), a longitudinal travel groove (11) is provided on the window frame fixing frame (1), an upper guide column (20) located in the left special-shaped guide groove (71) and a lower guide column (21) located in the longitudinal travel groove (11) are provided at the end of the self-locking slide block (2), and the self-locking slide block (2) moves longitudinally in the longitudinal travel groove (11) under the action of the angle change of the left special-shaped guide groove (71).

3. The casement window hinge structure with self-locking function according to claim 2, characterized in that: The left special-shaped guide groove (71) comprises two first parallel grooves (711) and a second parallel groove (712) which are staggered and parallel to each other, and an oblique guide groove (713) connecting the first parallel groove (711) and the second parallel groove (712), wherein the height distance of the oblique guide groove (713) is equal to the distance of the longitudinal travel groove (11).

4. The casement window hinge structure with self-locking function according to claim 1, characterized in that: The sliding assembly comprises a left sliding rod (7), a right sliding rod (8) and a conversion block (9); the connecting rod mechanism comprises a window sash fixing frame (3), a cantilever bracket (4), a long connecting rod (5) and a short connecting rod (6); the window sash fixing frame (3) is fixedly connected to the window sash; one end of the window sash fixing frame (3) is hinged to the right sliding rod (8) through the cantilever bracket (4), and the other end is hinged to the left sliding rod (7) through the short connecting rod (6); one end of the long connecting rod (5) is hinged to the cantilever bracket (4), and the other end is hinged to the left sliding rod (7); the self-locking device comprises four self-locking sliding blocks (2); the four self-locking sliding blocks (2) are grouped and respectively located below the left sliding rod (7) and the right sliding rod (8).

5. The casement window hinge structure with self-locking function according to claim 4, characterized in that: A left special-shaped guide groove (71) is provided at the bottom of the left slide bar (7), a right special-shaped guide groove (81) is provided at the bottom of the right slide bar (8), a longitudinal travel groove (11) is provided on the window frame fixing frame (1), an upper guide column (20) and a lower guide column (21) are provided on the self-locking sliding block (2), the upper guide column (20) is located in the left special-shaped guide groove (71) or the right special-shaped guide groove (81), the lower guide column (21) is located in the longitudinal travel groove (11), and the self-locking sliding block (2) moves longitudinally in the longitudinal travel groove (11) under the influence of the angle change of the left special-shaped guide groove (71) or the right special-shaped guide groove (81).

6. The casement window hinge structure with self-locking function according to claim 4, characterized in that: One end of the conversion block (9) is fixed to the window frame fixing frame (1) by screw locking, and the other end can be respectively embedded in the left slide bar (7) or the right slide bar (8), and the left slide bar (7) is provided with a first receiving groove (72) for receiving the head of the conversion block (9), and the right slide bar (8) is provided with a second receiving groove (82) for receiving the head of the conversion block (9).

7. The casement window hinge structure with self-locking function according to claim 4, characterized in that: The outer side of the left slide bar (7) is provided with a first extension portion (70) located inside the slide rail (10), and the outer side of the right slide bar (8) is provided with a second extension portion (80) located inside the slide rail (10).

8. The casement window hinge structure with self-locking function according to claim 1, characterized in that: The casement window hinge structure also includes a positioner (16) arranged on the window frame fixing frame (1) and in contact with an external window frame profile, and a mounting block (17) arranged on the connecting rod mechanism and connected to the window sash.

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