A flat hinge for hidden frame curtain wall

Abstract

The present invention discloses a casement hinge for a hidden frame curtain wall, which belongs to the field of building hardware door and window equipment. The hinge includes a fixed support system and a sliding damping support system. The fixed support system includes a base, a support plate, a support plate and a swing arm that are movably connected in sequence, and a long strip groove is provided in the middle of the base; the sliding damping support system includes a sliding block, a damping block and a swing arm pair arranged in the long strip groove, and the support plate is fixed to the window sash. When the window sash drives the hinge to open and close, the support plate, the swing arm and the swing arm pair all make a linked arc rotation, and drive the sliding block and the damping block to slide inside the long strip groove. The present invention strengthens the force on the middle part of the hinge through the arrangement of the fixed support system and the damping sliding support system, so that the force on the hinge is dispersed, and the bearing capacity of the hinge is enhanced; the problem of the window sash sagging and easy shaking due to wind pressure is effectively prevented. The hinge of the present invention has a large load-bearing capacity, a compact structure, and simple installation and maintenance, which effectively improves the practicality and safety of the hinge.

Description

Technical Field

[0001] The invention relates to the technical field of building hardware door and window equipment, in particular to a flat hinge for a hidden frame curtain wall. Background Art

[0002] A curtain wall is a building's outer structure composed of metal components and glass panels. Curtain wall windows are a protective structure that provides both ventilation and lighting within a building. Curtain wall windows are categorized as either visible or concealed frames. Unlike visible-frame curtain walls, concealed-frame windows have invisible metal frames. The horizontal and vertical glass dimensions of the sash are larger than the window itself. Conventional sliding-slot hinges have short swing arms, so when the sash is opened, the glass can collide with the frame, causing damage to the window. Furthermore, the casement hinges of existing concealed-frame curtain wall windows have limited load-bearing capacity and are prone to sagging. Furthermore, the sashes have poor wind resistance, impacting the overall lifespan of the glass curtain wall.

[0003] Therefore, the existing casement hinges for concealed frame curtain walls still have inconveniences and defects in their structure and use, and are in urgent need of further improvement. The industry is currently seeking to develop a new casement hinge for concealed frame curtain walls that, through the provision of a fixed support system and a sliding damping support system, can significantly increase the hinge's load-bearing capacity, reduce sash sagging, enhance its wind resistance and torsional resistance, and feature a compact structure, simple installation and maintenance, and effectively improve the hinge's practicality and safety. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a casement hinge for a hidden frame curtain wall, which strengthens the force on the middle part of the hinge through the setting of a fixed support system and a sliding damping support system, disperses the force on the hinge, and enhances the load-bearing capacity of the hinge; effectively prevents the window sash from sagging and shaking easily due to wind pressure, and has a compact structure and simple installation and maintenance, effectively improving the practicality and safety of the hinge.

[0005] To solve the above technical problems, the present invention provides a casement hinge for a hidden frame curtain wall, comprising a fixed support system and a sliding damping support system, wherein the fixed support system comprises a base, a support plate, a supporting plate, and a swing arm, wherein the base is used to be fixedly connected to the window frame, and the supporting plate is used to be fixedly connected to the window sash, one end of the support plate is rotatably connected to the base, and the other end thereof is rotatably connected to the middle portion of the supporting plate, one end of the supporting plate is rotatably connected to one end of the swing arm, and the other end of the swing arm is rotatably connected to the base, and an elongated groove is provided in the middle portion of the base;

[0006] The sliding damping support system includes a sliding block disposed in the elongated slot, a damping block disposed above the elongated slot, and an arm sub-assembly rotatably connected to the middle of the swing arm. The damping block is movably connected to the sliding block by a fastener. Corresponding first through holes are provided at one ends of the sliding block and the damping block close to the swing arm. The other end of the arm sub-assembly is rotatably connected to the first through holes of the damping block and the sliding block. When the support plate is opened and closed driven by the window sash, the support plate, the swing arm, and the arm sub-assembly all perform a linked arc rotation, and drive the sliding block and the damping block to slide inside the elongated slot.

[0007] Further improvement, the sliding damping support system further includes a support sub-assembly rotatably connected to the middle of the support plate. Corresponding second through holes are provided at one ends of the sliding block and the damping block close to the support plate. The other end of the support sub-assembly is rotatably connected to the second through holes of the damping block and the sliding block.

[0008] Further improvement, the through hole on the support sub-assembly connected to the support plate is provided as an elongated waist-shaped hole, and the elongated waist-shaped hole is used to realize the slidable connection between the support sub-assembly and the support plate.

[0009] Further improvement, both the support plate and the swing arm are provided with a stepped structure for avoiding the support sub-assembly and the arm sub-assembly. A countersunk round hole and a rivet are used at the connection hole between the arm sub-assembly and the swing arm to achieve a rotatable connection. An upwardly protruding mounting platform is provided at the connection between the base and the support plate.

[0010] Further improvement, the fastener connecting the sliding block and the damping block is an adjusting screw, and the adjusting screw is used to adjust the friction force between the damping block and the base.

[0011] Further improvement, a lifting block with an inclined surface is fixed on the base. The lifting block is used to lift the arm sub-assembly when the casement hinge is folded, and further lift the swing arm.

[0012] Further improvement, a limiting post is fixed at one end of the base away from the connection with the support plate. A V-shaped bayonet is provided at one end of the support plate close to the swing arm. When the V-shaped bayonet abuts against the limiting post during the folding of the casement hinge, it is locked. The lifting block is arranged between the limiting post and the connection between the swing arm and the base.

[0013] For further improvement, when the casement hinge is in the fully folded state, the included angle α between the connection line of the through holes at both ends of the support plate and the central axis in the length direction of the base is 1° to 3°, the included angle β between the connection line of the through holes at both ends of the swing arm and the connection line between the two through holes on the support plate is 15° to 20°. The two through holes on the support plate are respectively the through holes for connecting the support plate with the swing arm, and the distance L between the two through holes in the width direction of the base is 8 mm to 12 mm.

[0014] For further improvement, a limiting block is provided at one end of the long strip groove close to the support plate. A countersunk screw hole is provided in the middle of the limiting block. The limiting block passes through the long strip groove of the base and is fixed to the window frame to limit the opening angle of the casement hinge.

[0015] For further improvement, the outer shape of the limiting block is a T-shaped structure. When the T-shaped limiting block is fixed to the window frame, it will press on the long strip groove of the base to prevent the long strip groove from deforming when stressed.

[0016] After adopting such a design, the present invention has at least the following advantages:

[0017] 1. Through the combined setting of the fixed support system and the damping sliding support system of the casement hinge of the present invention, the support structure is dispersed, the hinge is widened, the stress on the middle part of the hinge is strengthened, more height space is obtained, the hinge can obtain greater load-bearing capacity and wind pressure resistance effect, the product load-bearing is strengthened, and the glass on the outer side of the window sash can be prevented from colliding with the window frame to prevent the window body from being damaged. It can be used not only on the casement windows of the hidden frame curtain wall, but also on the upper-hung outward-opening and lower-hung outward-opening windows and other windows, with wide applications, safety and reliability.

[0018] 2. By adding a support pair, the support effect of the hinge can be further enhanced. At the same time, in order to prevent the premature linkage between the support plate and the support pair from causing the hinge to operate smoothly, by providing an oblong waist hole on the support pair, a proper sliding connection exists between the support pair and the support plate. The sliding connection part of the support pair can ensure that the hinge can adapt to the running trajectories of each rod during the operation process, so that the hinge can operate smoothly when opening and folding.

[0019] 3. Also through the setting of the lifting block, when the hinge is closed, the lifting block fixed on the base can better correct the problem of the window sash sagging due to gravity. And through the setting of the limiting block, the opening angle of the window sash can be flexibly adjusted, and the problem of deformation of the long strip groove of the base when stressed can be reduced.

[0020] 4. Also through the setting of the adjusting screw, when the hinge does not need friction, the adjusting screw can be loosened to achieve the best opening experience. When it is necessary to fix the opening angle of the window sash, the adjusting screw can be directly tightened to ensure the safety of the window sash application. Description of the Drawings

[0021] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 It is a structural schematic diagram of the hidden frame curtain wall of the present invention in the open state of the casement hinge.

[0023] Figure 2 This is an exploded view of the structure of the hidden frame curtain wall of the present invention with the casement hinges opened.

[0024] Figure 3 This is a front view of the hidden frame curtain wall of the present invention with the casement hinges in the open state.

[0025] Figure 4 yes Figure 3 Middle AA section view.

[0026] Figure 5 It is a structural schematic diagram of the hidden frame curtain wall of the present invention in the folded state of the casement hinge.

[0027] Figure 6 It is a structural schematic diagram of the hidden frame curtain wall of the present invention in the folding application state of the casement hinge.

[0028] Figure 7 It is a structural front view of the hidden frame curtain wall of the present invention in the open application state of the casement hinge.

[0029] Figure 8 It is a three-dimensional structural schematic diagram of the hidden frame curtain wall of the present invention in the open application state of the casement hinge.

[0030] Figure 9 It is a structural schematic diagram of another embodiment of the casement hinge of the hidden frame curtain wall of the present invention in the open state. DETAILED DESCRIPTION

[0031] Refer to the attached Figures 1 to 8As shown in the figure, the casement hinge of the hidden frame curtain wall in this embodiment includes a base 11, a support plate 12, a support board 13, and a swing arm 14. An upwardly protruding mounting table 20 is provided on the base 11. The rivet 31 passes through the through hole on the support plate 12 and the washer 71 and is riveted to the mounting table 20 of the base 11, so that the support plate 12 is rotatably connected to the base 11. The rivet 33 is riveted through the through hole in the middle of the support board 13 and the washer 72 into the through hole at the other end of the support plate 12, so that the support board 13 and the support plate 12 are rotatably connected. The through hole at the end of the support board 13 is rotatably connected to the through hole at one end of the swing arm 14 by a rivet 34. The rivet 36 is riveted to the bottom plate 11 through the through hole at the other end of the swing arm 14 and the washer 73, so that the swing arm 14 and the base 11 are rotatably connected. The base 11 is fixed to the window frame A by screws, and the support board 13 is fixed to the window sash B by screws. Then, the base 11, the support plate 12, the support board 13, and the swing arm 14 form a fixed support system through four movable connection rivet fixing points, improving its load-bearing capacity.

[0032] The casement hinge further includes a sliding damping support system. A long strip-shaped groove 19 is provided in the middle of the base 11. The sliding damping support system includes a sliding block 18 arranged in the long strip-shaped groove 19, a damping block 17 arranged above the long strip-shaped groove 19, a support pair 16 rotatably connected to the middle of the support plate 12, and a swing arm pair 15 rotatably connected to the middle of the swing arm 14.

[0033] Specifically, the damping block 17 is made of wear-resistant copper. A threaded hole is provided in the middle of the sliding block 18. The adjusting screw 51 passes through the through hole in the middle of the damping block 17 and is connected to the threaded hole of the sliding block 18. Gradually tightening the adjusting screw 51 can increase the damping effect between the damping block 17 and the long strip-shaped groove 19. Through holes corresponding to each other are provided at both ends of the damping block 17 and the sliding block 18. The rivet 37 passes through the through hole at one end of the swing arm pair 15 and the through hole at one end of the damping block 17 and is riveted to the through hole at one end of the sliding block 18, so that the swing arm pair 15 and the damping block 17 are rotatably connected. The rivet 38 passes through the through hole at one end of the support pair 16 and the through hole at the other end of the damping block 17 and is riveted to the through hole at the other end of the sliding block 18, so that the support pair 16 and the damping block 17 are rotatably connected. The rivet 35 passes through the through hole in the middle of the swing arm 14 and the washer 74 and is riveted to the through hole at the other end of the swing arm pair 15, so that the swing arm pair 15 and the swing arm 14 are rotatably connected. The rivet 32 passes through the through hole at one end of the support pair 16 and the washer 75 and is riveted to the support plate 12, so that the support pair 16 and the support plate 12 are rotatably connected. Also, since the swing arm pair 15 is connected to the swing arm 14 and the damping block 17, and the support pair 16 is connected to the support plate 12 and the damping block 17, the sliding block 18 and the damping block 17 are driven to perform linear sliding inside the long strip-shaped groove 19. When the sash B is opened, the support plate 13 drives the fixed support systems such as the support plate 12 and the swing arm 14. At the same time, the swing arm pair 15 connected to the swing arm drives the sliding damping support systems such as the damping block 17, the sliding block 18, and the support pair 16 under the action of the swing arm 14. The two systems are linked and interact with each other, enabling the sash to be quickly lifted, avoiding the collision between the glass on the outer side of the sash and the window frame, and preventing the window body from being damaged. When the sash needs to be fixed at an opening angle, only the adjusting screw 51 on the damping block 17 needs to be tightened, otherwise the adjusting screw 51 is loosened for opening angle adjustment. This sliding damping support system can not only further improve the load-bearing capacity of the hinge, but also solve the problem that the hinge is prone to shaking under wind pressure, enhance the wind resistance of the product, and improve the practicability and safety of the hinge.

[0034] To achieve the smooth folding of the casement hinge, in this embodiment, both the support plate 12 and the swing arm 14 are provided with a stepped structure that can avoid the support pair 16 and the swing arm pair 15. And the through hole in the middle of the swing arm 14 is a countersunk round hole, so that the rivet does not affect the folding of the swing arm 14 and the support plate 13.

[0035] To prevent the premature linkage between the support plate 12 and the support pair 16 and disrupt the movement sequence, in this embodiment, the through hole for connecting the support pair 16 and the support plate 12 is set as an oblong waist hole 52, as Figure 2As shown. The elongated waist hole 52 delays the linkage between the support pair 16 and the support plate 12, allowing the hinge to adapt to the trajectory of each rod during operation. Furthermore, the support pair 16 also serves the following function: when the hinge is subjected to downward pressure, the support pair 16 can provide partial support to the support plate 12. Similarly, the swing arm pair 15 can also provide partial support to the swing arm 14, further increasing the hinge's load-bearing capacity.

[0036] A limiting column 81 is fixed on the end of the base 11 away from the connection with the support plate 12, and a V-shaped bayonet 82 is provided on the end of the support plate 13 close to the swing arm 14. When the flat hinge is folded and closed, when the angle between the hinge base 11 and the support plate 13 is less than 5 degrees, the V-shaped bayonet 82 at the bottom of the support plate begins to slowly contact the limiting column 81. Due to the effect of the inclined surface, the limiting column 81 and the inclined surface are gradually tightened until the angle between the base 11 and the support plate 13 is 0 degrees. At this time, the hinge is in a completely locked state, thereby ensuring the sealing performance of the hinge.

[0037] A lifting block 21 with an inclined surface is also fixed to the base 11. The lifting block 21 is positioned between the limiting post 81 and the connection between the swing arm 14 and the base 11 via hexagonal fixing rivets 39. The inclined surface of the lifting block 21 is used to lift the swing arm assembly 15 and, in turn, the swing arm 14 when the casement hinge is folded, thereby preventing the window sash B from sagging and extending the life of the curtain wall window.

[0038] Refer to the attached Figure 5 As shown, when the casement hinge is in a fully folded and closed state, the angle a between the line S1 connecting the through holes at both ends of the support plate 12 and the longitudinal centerline of the base 11 is 1 to 3 degrees, and the angle b between the line S2 connecting the through holes at both ends of the swing arm 14 and the line S3 connecting the two through holes on the support plate 13 is 15 to 20 degrees. The two through holes on the support plate 13 connect the support plate 13 to the support plate 12 and the swing arm 14, respectively, and the distance L between the two through holes in the width direction of the base 11 is 8 to 12 mm. This angle setting can increase the speed at which the hinge is lifted upward, effectively avoiding collisions caused by a small gap between the window sash and the window frame, and ensuring the smooth opening of the casement hinge.

[0039] A stopper 61 is provided at one end of the elongated slot 19, near the support plate 12. A countersunk screw hole is provided in the center of the stopper 61. The stopper 61 passes through the elongated slot 19 of the base 11 and is secured to the window frame A, limiting the opening angle of the casement hinge. The closer the stopper 61 is to the support plate, the greater the opening angle of the window sash B.

[0040] Furthermore, the limiting block 61 has a T-shaped structure. When the limiting block 61 is fixed to the window frame A, it presses the upper portion of the elongated groove of the base 11 to prevent the elongated groove 19 from deforming when subjected to force.

[0041] Furthermore, a limiting pin 83 is provided on the base 11. The limiting pin 83 is located on the side of the connection point between the swing arm 14 and the base 11, close to the elongated slot 19, so that it can limit the rotation angle of the swing arm 14. After the window sash B is opened, when the swing arm 14 rotates in an arc, it hits the limiting pin 83, thus completing the full opening of the window sash B.

[0042] A support plate 91 is further provided at the connection between the support plate 13 and the swing arm 14. The support block 91 is used to be fixedly connected to the horizontal right-angle side of the window sash B. Specifically, a threaded hole is provided inside the support block 91, and the window sash can be adjusted by screws 41 when it sags.

[0043] Of course, in this embodiment, the sliding damping support system can also be formed by only the sliding block 18, the damping block 17 and the swing arm pair 15, as shown in the attached figure. Figure 9 As shown, the structure of the sliding damping support system is simpler and the opening and closing of the hinge is smoother.

[0044] The casement hinge of the present invention is arranged in coordination with a fixed support system and a damping sliding support system. By dispersing the support structure and widening the hinge, the force on the middle part of the hinge is strengthened, more height space is obtained, and the hinge can obtain a greater load-bearing capacity and wind pressure resistance effect. The load-bearing capacity of the product is enhanced, and the glass on the outside of the window sash can be prevented from colliding with the window frame, thereby preventing damage to the window body. It can be used not only on casement windows of hidden frame curtain walls, but also on top-hung and bottom-hung outward-opening windows. It has a wide range of uses and is safe and reliable.

[0045] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be indirectly connected through an intermediate medium, or it can be the internal communication 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.

[0047] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modifications, equivalent changes or decorations made by those skilled in the art using the technical content disclosed above all fall within the protection scope of the present invention.

Claims

1. A casement hinge for a hidden frame curtain wall, characterized in that, It includes a fixed support system and a sliding damping support system. The fixed support system includes a base (11), a support plate (12), a support board (13) and a swing arm (14). The base (11) is used for fixedly connecting with the window frame. The support board (13) is used for fixedly connecting with the window sash. One end of the support plate (12) is rotatably connected with the base (11), and the other end thereof is rotatably connected with the middle part of the support board (13). One end of the support board (13) is rotatably connected with one end of the swing arm (14), and the other end of the swing arm (14) is rotatably connected with the base (11). A long strip-shaped groove (19) is arranged in the middle of the base (11). The sliding damping support system includes a sliding block (18) arranged in the long strip-shaped groove (19), a damping block (17) arranged at the upper part of the long strip-shaped groove (19), and a swing arm pair (15) rotatably connected with the middle part of the swing arm (14). The damping block (17) is movably connected with the sliding block (18) through a fastener. Corresponding first through holes are arranged at one ends of the sliding block (18) and the damping block (17) close to the swing arm (14). The other end of the swing arm pair (15) is rotatably connected to the first through holes of the damping block (17) and the sliding block (18). When the support board (13) opens and closes driven by the window sash, the support plate (12), the swing arm (14) and the swing arm pair (15) all make a linked arc-shaped rotation, and drive the sliding block (18) and the damping block (17) to slide inside the long strip-shaped groove (19).

2. The flat hinge of the hidden frame curtain wall according to claim 1, characterized in that: The sliding damping support system further includes a support pair (16) rotatably connected with the middle part of the support plate (12). Corresponding second through holes are arranged at one ends of the sliding block (18) and the damping block (17) close to the support plate (12). The other end of the support pair (16) is rotatably connected to the second through holes of the damping block (17) and the sliding block (18).

3. The flat hinge of the hidden frame curtain wall according to claim 2, characterized in that: The through hole on the support pair (16) connected with the support plate (12) is arranged as an oblong waist-shaped hole (52), and the oblong waist-shaped hole (52) is used to realize the slidable connection between the support pair (16) and the support plate (12).

4. The flat hinge of the hidden frame curtain wall according to claim 2, characterized in that: Both the support plate (12) and the swing arm (14) are arranged as a stepped structure to avoid the support pair (16) and the swing arm pair (15). The connection hole between the swing arm pair (15) and the swing arm (14) is rotatably connected by using a countersunk round hole and a rivet. An upward protruding mounting table (20) is arranged at the rotational connection part of the base (11) and the support plate (12).

5. The flat hinge of the hidden frame curtain wall according to claim 1, characterized in that: The fastener connecting the sliding block (18) and the damping block (17) is an adjusting screw (51), and the adjusting screw (51) is used to adjust the friction force between the damping block (17) and the base (11).

6. The casement hinge of the hidden frame curtain wall according to claim 1, characterized in that: A lifting block (21) with an inclined surface is fixed on the base (11), and the lifting block (21) is used to lift the swing arm pair (15) when the casement hinge is folded, and further lift the swing arm (14).

7. The casement hinge of the hidden frame curtain wall according to claim 6, characterized in that: A limiting column (81) is fixed on one end of the base (11) away from the connection with the support plate (12), and a V-shaped bayonet (82) is provided on one end of the support plate (13) close to the swing arm (14). When the flat hinge is folded, the V-shaped bayonet (82) and the limiting column (81) are locked when they come into contact with each other. The lifting block (21) is arranged between the limiting column (81) and the connection between the swing arm (14) and the base (11).

8. The casement hinge of the hidden frame curtain wall according to claim 1, characterized in that: When the flat hinge is in a fully folded state, an angle a between a line connecting the through holes at both ends of the support plate (12) and the central axis in the length direction of the base (11) is 1 to 3 degrees, an angle b between a line connecting the through holes at both ends of the swing arm (14) and a line connecting the two through holes on the support plate (13) is 15 to 20 degrees, the two through holes on the support plate (13) are through holes connecting the support plate (13) with the support plate (12) and the swing arm (14), and a distance L between the two through holes in the width direction of the base (11) is 8 to 12 mm.

9. The casement hinge for a hidden frame curtain wall according to any one of claims 1 to 8, characterized in that: A limit block (61) is provided at one end of the long strip groove (19) close to the support plate (12), and a countersunk screw hole is provided in the middle of the limit block (61). The limit block (61) passes through the long strip groove (19) of the base (11) and is fixed to the window frame to limit the opening angle of the casement hinge.

10. The casement hinge of the hidden frame curtain wall according to claim 9, characterized in that: The limiting block (61) has a T-shaped structure. When the limiting block of the T-shaped structure is fixed to the window frame, it presses the long strip groove (19) of the base (11) to prevent the long strip groove (19) from being deformed when subjected to force.

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